0000851310-22-000023 | 10-Q | XBRL Viewer

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SEGMENT INFORMATION - Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Segment Reporting Information [Line Items]
Net revenue	$ 147,439	$ 111,576
United States
Segment Reporting Information [Line Items]
Net revenue	86,878	67,095
Other countries
Segment Reporting Information [Line Items]
Net revenue	$ 60,561	$ 44,481

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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+ Details

LEASES (Tables)

3 Months Ended

Apr. 01, 2022

Leases [Abstract]

Schedule of Lease Expense

The components of lease expense are as follows:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Operating lease cost	$	1,887	$	1,866
Variable lease cost	461		1,099
Total lease cost	$	2,348	$	2,965

Supplemental information related to leases are as follows:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Cash paid for amounts included in the measurement of operating lease liabilities	$	1,916	$	1,838
Right-of-use assets obtained in exchange for operating lease obligations	$	129	$	—

CONVERTIBLE DEBT - Components of Convertible Notes (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 02, 2021	Dec. 31, 2021	Apr. 01, 2022
Debt Instrument [Line Items]
Carrying amount		$ 98,941	$ 113,324
2022 Notes
Debt Instrument [Line Items]
Principal amount		37,707	37,707
Less: Debt discount, net of amortization		(672)
Less: Debt issuance costs, net of amortization		(211)	(189)
Carrying amount		$ 36,824	37,518
Remaining debt discount amortization period (years)		10 months 24 days
Effective interest rate on liability component (as a percent)		6.95%
2024 Notes
Debt Instrument [Line Items]
Principal amount		$ 115,500	115,500
Less: Debt discount, net of amortization		(14,576)
Less: Debt issuance costs, net of amortization		(1,983)	(2,176)
Carrying amount		$ 98,941	$ 113,324
Remaining debt discount amortization period (years)	2 years 8 months 12 days
Effective interest rate on liability component (as a percent)		7.95%

OTHER FINANCIAL STATEMENT INFORMATION - Inventories (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Raw materials	$ 26,491	$ 22,245
Work-in-process	5,085	3,993
Finished goods	43,012	37,545
Service-related spares	7,228	7,412
Total	$ 81,816	$ 71,195

SEGMENT INFORMATION - Narrative (Details)	3 Months Ended
SEGMENT INFORMATION - Narrative (Details)	Apr. 01, 2022 segment
Segment Reporting [Abstract]
Number of operating segments	2

EARNINGS PER SHARE

3 Months Ended

Apr. 01, 2022

Earnings Per Share [Abstract]

EARNINGS PER SHARE

The diluted net loss per share was the same as the basic net loss per share for the three months ended April 1, 2022 and April 2, 2021, as the inclusion of potential common shares outstanding would have been anti-dilutive due to the Company’s net losses for all periods presented. The following table sets forth the potential weighted common shares outstanding that were excluded from the diluted net income (loss) per share computation:


	Three Months Ended
(in thousands)	April 1, 2022	April 2, 2021
Convertible debt	4,244	1,795
Stock options	387	1,191
Restricted stock units	3,066	2,828
Stock purchase rights under the ESPP	409	340
Total	8,106	6,154

STOCKHOLDERS’ EQUITY

3 Months Ended

Apr. 01, 2022

Equity [Abstract]

STOCKHOLDERS’ EQUITY

Share-based Compensation Plans

The following table sets forth the detailed allocation of the share-based compensation expense which was included in the Company’s Condensed Consolidated Statements of Operations:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Cost of revenue	$	527	$	1,073
Research and development expense	2,536		2,540
Selling, general and administrative expense	4,523		4,785
Total	$	7,586	$	8,398

Restricted Stock Units:


(in thousands, except per share amounts)	Number of Shares	Weighted Average Grant-Date Fair Value Per Share
Balance at December 31, 2021	3,878	$	7.31
Granted	1,548	9.19
Vested	(1,744)	7.22
Forfeited	(38)	8.11
Balance at April 1, 2022	3,644	$	8.26

As of April 1, 2022, an aggregate of 5,610,238 shares of common stock were reserved for issuance under the 1995 Stock Plan, of which 1,764,908 shares remained available for future grants. As of April 1, 2022, an aggregate of 713,431 shares of common stock were reserved for issuance under the 2002 Director Plan, of which 527,984 shares remained available for future grants.

Share Repurchase Program

On February 3, 2022, the Board of Directors authorized the Company to repurchase up to $100 million of the Company’s outstanding shares of common stock through February 2025. The Company is authorized to repurchase, from time-to-time, shares of its outstanding common stock through open market purchases and 10b5-1 trading plans, in accordance with applicable rules and regulations, at such time and such prices as management may decide. The program does not obligate the Company to repurchase any specific number of shares and may be discontinued at any time. The actual timing and amount of repurchases are subject to business and market conditions, corporate and regulatory requirements, stock price, acquisition opportunities and other factors.

During the three months ended April 1, 2022, the company repurchased and retired approximately 0.2 million shares of the Company’s common stock for an aggregate amount of $2.1 million. As of April 1, 2022, approximately $98 million of the share repurchase authorization remained available for repurchases under this program.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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+ Details

COMMITMENTS AND CONTINGENCIES	3 Months Ended
COMMITMENTS AND CONTINGENCIES	Apr. 01, 2022
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Indemnification The Company is obligated to indemnify its officers and the members of its Board of Directors pursuant to its bylaws and contractual indemnity agreements. The Company also indemnifies some of its suppliers and most of its customers for specified intellectual property matters pursuant to certain contractual arrangements, subject to certain limitations. The scope of these indemnities varies, but, in some instances, includes indemnification for damages and expenses (including reasonable attorneys’ fees). There have been no amounts accrued in respect of these indemnification provisions through April 1, 2022. Legal proceedings From time to time, the Company is involved in lawsuits as well as subject to various legal proceedings, claims, threats of litigation, audits of royalty payments for licensed technology and investigations in the ordinary course of business, including claims of alleged infringement of third-party patents and other intellectual property rights, commercial, employment, and other matters. The Company assesses potential liabilities in connection with each lawsuit and threatened lawsuits and accrues an estimated loss for these loss contingencies if both of the following conditions are met: information available prior to issuance of the financial statements indicates that it is probable that a liability has been incurred at the date of the financial statements and the amount of loss can be reasonably estimated. While certain matters to which the Company is a party specify the damages claimed, such claims may not represent reasonably probable losses. Given the inherent uncertainties of litigation, the ultimate outcome of these matters cannot be predicted at this time, nor can the amount of possible loss or range of loss, if any, be reasonably estimated.

OTHER FINANCIAL STATEMENT INFORMATION - Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts receivable	$ 119,414	$ 91,382
Less: allowances for expected credit losses and sales returns	(3,820)	(2,853)
Total	$ 115,594	$ 88,529

EARNINGS PER SHARE (Tables)

3 Months Ended

Apr. 01, 2022

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities


	Three Months Ended
(in thousands)	April 1, 2022	April 2, 2021
Convertible debt	4,244	1,795
Stock options	387	1,191
Restricted stock units	3,066	2,828
Stock purchase rights under the ESPP	409	340
Total	8,106	6,154

REVENUE - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
REVENUE - Narrative (Details) - USD ($) $ in Millions	Apr. 01, 2022	Apr. 02, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue recognized that was included within the deferred revenue balance	$ 23.5	$ 30.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-02
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 518.6
Revenue, remaining performance obligation, proportion to be recognized in next twelve months (as a percent)	82.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Apr. 01, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000	5,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	150,000	150,000
Common stock, shares issued (in shares)	104,603	102,959
Common stock, shares outstanding (in shares)	104,603	102,959

STOCKHOLDERS’ EQUITY - Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation	$ 7,586	$ 8,398
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation	527	1,073
Research and development expense
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation	2,536	2,540
Selling, general and administrative expense
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation	$ 4,523	$ 4,785

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance (in shares) at Dec. 31, 2020				98,204
Beginning balance at Dec. 31, 2020	$ 258,302			$ 98		$ 2,353,559			$ (2,101,211)			$ 5,856
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(6,124)								(6,124)
Other comprehensive loss, net of tax	(3,981)											(3,981)
Issuance of common stock under stock option, award and purchase plans (in shares)				2,789
Issuance of common stock under stock option, award and purchase plans	4,775			$ 3		4,772
Stock-based compensation	8,362					8,362
Reclassification from equity to mezzanine equity for 2020 Notes	(1,564)					(1,564)
Ending balance (in shares) at Apr. 02, 2021				100,993
Ending balance at Apr. 02, 2021	259,770			$ 101		2,365,129			(2,107,335)			1,875
Beginning balance (in shares) at Dec. 31, 2020				98,204
Beginning balance at Dec. 31, 2020	$ 258,302			$ 98		2,353,559			(2,101,211)			5,856
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	ASU 2020-06
Ending balance (in shares) at Dec. 31, 2021				102,959	102,959
Ending balance at Dec. 31, 2021	$ 295,913	$ (13,910)	$ 282,003	$ 103	$ 103	2,387,039	$ (32,249)	$ 2,354,790	(2,087,957)	$ 18,339	$ (2,069,618)	(3,272)	$ (3,272)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,529)								(1,529)
Other comprehensive loss, net of tax	(1,765)											(1,765)
Issuance of common stock under stock option, award and purchase plans (in shares)				1,877
Issuance of common stock under stock option, award and purchase plans	274			$ 2		272
Repurchase of common stock (in shares)				(233)
Repurchase of common stock	(2,141)			$ (2,100)
Stock-based compensation	7,811					7,811
Ending balance (in shares) at Apr. 01, 2022				104,603
Ending balance at Apr. 01, 2022	$ 284,653			$ 105		$ 2,362,873			$ (2,073,288)			$ (5,037)

FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Apr. 01, 2022

Fair Value Disclosures [Abstract]

Schedule of Financial Instruments Not Measured at Fair Value on a Recurring Basis

The Company’s financial instruments not measured at fair value on a recurring basis were as follows:


	April 1, 2022								December 31, 2021
	Carrying		Fair Value						Carrying		Fair Value
(in thousands)	Value		Level 1		Level 2		Level 3		Value		Level 1		Level 2		Level 3
2022 Notes	$	37,518	$	—	$	62,405	$	—	$	36,824	$	—	$	78,619	$	—
2024 Notes	$	113,324	$	—	$	148,432	$	—	$	98,941	$	—	$	173,419	$	—

SEGMENT INFORMATION (Tables)

3 Months Ended

Apr. 01, 2022

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following table provides summary financial information by reportable segment:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Video
Revenue	$	65,842	$	70,331
Gross profit	38,684		38,774
Operating income	3,139		3,772
Cable Access
Revenue	$	81,597	$	41,245
Gross profit	31,011		17,408
Operating income	8,139		1,296
Total
Revenue	$	147,439	$	111,576
Gross profit	69,695		56,182
Operating income	$	11,278	$	5,068

Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated

A reconciliation of the Company’s consolidated segment operating income to consolidated income (loss) before income taxes is as follows:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Total consolidated segment operating income	$	11,278	$	5,068
Unallocated corporate expenses(1)	(1,156)		(7)
Stock-based compensation	(7,586)		(8,398)
Amortization of intangibles	—		(507)
Consolidated income (loss) from operations	2,536		(3,844)
Non-operating expense, net	(1,371)		(1,584)
Income (loss) before income taxes	$	1,165	$	(5,428)

(1) Together with amortization of intangibles and stock-based compensation, the Company does not allocate restructuring and related charges to the operating income (loss) for each segment because management does not include this information in the measurement of the performance of the operating segments.

Schedule of Revenue from External Customers by Geographic Areas


Geographic Information	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Net revenue (1)
United States	$	86,878	$	67,095
Other countries	60,561		44,481
Total	$	147,439	$	111,576

(1) Revenue is attributed to countries based on the location of the customer.

CONVERTIBLE DEBT

3 Months Ended

Apr. 01, 2022

Debt Disclosure [Abstract]

CONVERTIBLE DEBT

4.375% Convertible Senior Notes due 2022 (the “2022 Notes”)

In June 2020, the Company issued the 2022 Notes with an aggregate principal amount of $37.7 million in a non-cash exchange for its 2020 Notes with an equal principal amount pursuant to an indenture, dated June 2, 2020 (the “2022 Notes Indenture”), by and between the Company and U.S. Bank National Association, as trustee. The 2022 Notes bear interest at a rate of 4.375% per year, payable in cash on June 1 and December 1 of each year. The 2022 Notes will mature on December 1, 2022, unless earlier repurchased or redeemed by the Company, or converted pursuant to their terms.

The 2022 Notes were initially convertible into cash, shares of the Company’s common stock, par value $0.001 (“Common Stock”), or a combination thereof, at the Company’s election, at an initial conversion rate of 173.9978 shares of Common Stock per $1,000 principal amount of 2022 Notes (which is equivalent to an initial conversion price of approximately $5.75 per share). Pursuant to the supplemental indenture entered into by the Company and the trustee during the fourth quarter of fiscal 2021, the Company made an irrevocable election to settle the principal amounts of the 2022 Notes solely with cash and may pay or deliver, as the case may be, any conversion value greater than the principal amount in cash, shares of common stock or a combination thereof, at the Company’s election. The conversion rate, and thus the effective conversion price, may be adjusted under certain circumstances, including in connection with conversions made following certain fundamental changes and under other circumstances as set forth in the 2022 Notes Indenture.

Prior to the close of business on the business day immediately preceding September 1, 2022, the 2022 Notes will be convertible only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ended on June 26, 2020 (and only during such fiscal quarter), if the last reported sale price of Common Stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of 2022 Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of Common Stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. Commencing on September 1, 2022 until the close of business on the second scheduled trading day immediately preceding the maturity date, the 2022 Notes will be convertible in multiples of $1,000 principal amount regardless of the foregoing circumstances.

The 2022 Notes became convertible as of April 1, 2022, as the last reported sale price of the Company’s common stock for at least 20 trading days during a period of 30 consecutive trading days ending on April 1, 2022 was greater than 130% of the conversion price of the 2022 Notes on each applicable trading day. All $37.5 million of the net carrying amount of the 2022 Notes outstanding as of April 1, 2022 was classified as a current liability as of that date.

As the 2022 Notes were issued in exchange for the 2020 Notes, which was accounted for as an extinguishment, the 2022 Notes were initially accounted for at fair value, which was estimated to be $44.4 million. In accordance with the accounting guidance on embedded conversion features, the conversion feature associated with the 2022 Notes was initially valued at $8.3 million and bifurcated from the host debt instrument and recorded in “Additional paid-in capital.” The remaining amount of $36.0 million, which represents the fair value of the liability component of the 2022 Notes, was recorded as the initial carrying value of the 2022 Notes. The initial debt discount on the 2022 Notes was $1.7 million, calculated as the difference between the stated principal amount of $37.7 million and the initial carrying value of the liability component of $36.0 million. The debt discount was being amortized, prior to adoption of ASU 2020-06, to interest expense at the effective interest rate over the contractual term of the 2022 Notes.

The following table presents the components of the 2022 Notes:


	As of
(in thousands, except for years and percentages)	April 1, 2022		December 31, 2021
Liability component:
Principal amount	$	37,707	$	37,707
Less: Debt discount, net of amortization	—		(672)
Less: Debt issuance costs, net of amortization	(189)		(211)
Carrying amount	$	37,518	$	36,824
Remaining debt discount amortization period (years)	n/a		0.9
Effective interest rate on liability component	n/a		6.95		%

The following table presents interest expense recognized for the 2022 Notes:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Contractual interest expense	$	412	$	412
Amortization of debt discount	—		166
Amortization of debt issuance costs	68		52
Total interest expense recognized	$	480	$	630

2.00% Convertible Senior Notes due 2024 (the “2024 Notes”)

In September 2019, the Company issued the 2024 Notes with an aggregate principal amount of $115.5 million pursuant to an indenture (the “2024 Notes Indenture”), dated September 13, 2019, by and between the Company and U.S. Bank National Association, as trustee. The 2024 Notes bear interest at a rate of 2.00% per year, payable semiannually on March 1 and September 1 of each year. The 2024 Notes will mature on September 1, 2024, unless earlier repurchased or redeemed by the Company, or converted pursuant to their terms.

The 2024 Notes were initially convertible into cash, shares of the Company’s common stock, par value $0.001 (“Common Stock”), or a combination thereof, at the Company’s election, at an initial conversion rate of 115.5001 shares of Common Stock per $1,000 principal amount of 2024 Notes (which is equivalent to an initial conversion price of approximately $8.66 per share). Pursuant to the supplemental indenture entered into by the Company and the trustee during the fourth quarter of fiscal 2021, the Company made an irrevocable election to settle the principal amounts of the 2024 Notes solely with cash and may pay or deliver, as the case may be, any conversion value greater than the principal amount in cash, shares of common stock or a combination thereof, at the Company’s election. The conversion rate, and thus the effective conversion price, may be adjusted under certain circumstances, including in connection with conversions made following certain fundamental changes or a notice of redemption and under other circumstances, in each case, as set forth in the 2024 Notes Indenture.

The 2024 Notes will be convertible at certain times and upon the occurrence of certain events in the future, in each case, specified in the 2024 Notes Indenture. Further, on or after June 1, 2024, until the close of business on the scheduled trading day immediately preceding the maturity date, holders of the 2024 Notes may convert all or a portion of their 2024 Notes regardless of these conditions.

In accordance with the accounting guidance on embedded conversion features, the conversion feature associated with the 2024 Notes was valued at $24.9 million and bifurcated from the host debt instrument and recorded in “Additional paid-in capital”. The resulting debt discount on the 2024 Notes was being amortized, prior to adoption of ASU 2020-06, to interest expense at the effective interest rate over the contractual term of the 2024 Notes.

The following table presents the components of the 2024 Notes:


	As of
(in thousands, except for years and percentages)	April 1, 2022		December 31, 2021
Liability component:
Principal amount	$	115,500	$	115,500
Less: Debt discount, net of amortization	—		(14,576)
Less: Debt issuance costs, net of amortization	(2,176)		(1,983)
Carrying amount	$	113,324	$	98,941
Remaining debt discount amortization period (years)	n/a		2.7
Effective interest rate on liability component	n/a		7.95		%

The following table presents interest expense recognized for the 2024 Notes:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Contractual interest expense	$	578	$	578
Amortization of debt discount	—		1,146
Amortization of debt issuance costs	217		156
Total interest expense recognized	$	795	$	1,880

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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+ Details

SEGMENT INFORMATION - Schedule of Financial Information by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Segment Reporting Information [Line Items]
Revenue	$ 147,439	$ 111,576
Gross profit	69,182	55,145
Operating income	2,536	(3,844)
Operating segments
Segment Reporting Information [Line Items]
Revenue	147,439	111,576
Gross profit	69,695	56,182
Operating income	11,278	5,068
Operating segments \| Video
Segment Reporting Information [Line Items]
Revenue	65,842	70,331
Gross profit	38,684	38,774
Operating income	3,139	3,772
Operating segments \| Cable Access
Segment Reporting Information [Line Items]
Revenue	81,597	41,245
Gross profit	31,011	17,408
Operating income	$ 8,139	$ 1,296

- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 100,739	$ 133,431
Accounts receivable, net	115,594	88,529
Inventories	81,816	71,195
Prepaid expenses and other current assets	27,251	29,972
Total current assets	325,400	323,127
Property and equipment, net	42,577	42,721
Operating lease right-of-use assets	29,556	30,968
Other non-current assets	63,281	56,657
Goodwill	239,631	240,213
Total assets	700,445	693,686
Current liabilities:
Convertible debt, current	37,518	36,824
Other debts, current	4,906	4,992
Accounts payable	52,524	64,429
Deferred revenue	75,474	57,226
Operating lease liabilities, current	7,362	7,346
Other current liabilities	53,072	53,644
Total current liabilities	230,856	224,461
Convertible debt, non-current	113,324	98,941
Other debts, non-current	12,740	12,989
Operating lease liabilities, non-current	27,689	29,120
Other non-current liabilities	31,183	31,379
Total liabilities	415,792	396,890
Commitments and contingencies (Note 11)
Convertible debt (Note 6)		883
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value, 150,000 shares authorized; 104,603 and 102,959 shares issued and outstanding at April 1, 2022 and December 31, 2021, respectively	105	103
Additional paid-in capital	2,362,873	2,387,039
Accumulated deficit	(2,073,288)	(2,087,957)
Accumulated other comprehensive loss	(5,037)	(3,272)
Total stockholders’ equity	284,653	295,913
Total liabilities and stockholders’ equity	$ 700,445	$ 693,686

REVENUE - Summary of Contract Assets and Deferred Revenue (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Contract assets	$ 4,717	$ 8,101
Deferred revenue	$ 96,508	$ 78,167

RECENT ACCOUNTING PRONOUNCEMENTS (Tables)

3 Months Ended

Apr. 01, 2022

Accounting Changes and Error Corrections [Abstract]

Schedule of Accounting Standards Update and Change in Accounting Principle

The cumulative effect of the ASU adoption was as follows:


			Adjustments from
	Balance at		Adoption of		Balance at
(in thousands)	December 31, 2021		ASU 2020-06		January 1, 2022
Liabilities
Convertible debt, current	$	36,824	$	626	$	37,450
Convertible debt, non-current	98,941		14,167		113,108
Mezzanine equity
Convertible debt	883		(883)		—
Equity
Additional paid-capital	2,387,039		(32,249)		2,354,790
Accumulated deficit	(2,087,957)		18,339		(2,069,618)

REVENUE

3 Months Ended

Apr. 01, 2022

Revenue from Contract with Customer [Abstract]

REVENUE

Contract assets exist when the Company has satisfied a performance obligation but does not have an unconditional right to consideration (e.g., because the entity first must satisfy another performance obligation in the contract before it is entitled to invoice the customer). Deferred revenue represents the Company’s obligation to transfer goods or services to a customer for which the Company has received consideration (or an amount of consideration is due) from the customer.

Contract assets and deferred revenue consisted of the following:


	As of
(in thousands)	April 1, 2022		December 31, 2021
Contract assets	$	4,717	$	8,101
Deferred revenue	$	96,508	$	78,167

Contract assets and the non-current portion of Deferred revenue are reported as components of “Prepaid expenses and other current assets” and “Other non-current liabilities,” respectively, on the Condensed Consolidated Balance Sheets.

Revenue recognized during the three months ended April 1, 2022, that was included within the deferred revenue balance at January 1, 2022, was $23.5 million. Revenue recognized during the three months ended April 2, 2021, that was included within the deferred revenue balance at January 1, 2021 was $30.4 million.

Remaining performance obligations represent contracted revenues that had not yet been recognized and future revenue recognition is expected. The aggregate balance of the Company’s remaining performance obligations as of April 1, 2022 was $518.6 million, of which approximately 82% is expected to be recognized as revenue over the next 12 months and the remainder thereafter.

Refer to Note 10, “Segment Information” for disaggregated revenue information.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

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+ Details

CONVERTIBLE DEBT - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
2022 Notes
Debt Instrument [Line Items]
Contractual interest expense	$ 412	$ 412
Amortization of debt discount		166
Amortization of debt issuance costs	68	52
Total interest expense recognized	480	630
2024 Notes
Debt Instrument [Line Items]
Contractual interest expense	578	578
Amortization of debt discount		1,146
Amortization of debt issuance costs	217	156
Total interest expense recognized	$ 795	$ 1,880

OTHER FINANCIAL STATEMENT INFORMATION

3 Months Ended

Apr. 01, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

OTHER FINANCIAL STATEMENT INFORMATION

The following tables provide details of selected balance sheet components:


Accounts receivable, net:	As of
(in thousands)	April 1, 2022		December 31, 2021
Accounts receivable	$	119,414	$	91,382
Less: allowances for expected credit losses and sales returns	(3,820)		(2,853)
Total	$	115,594	$	88,529


Inventories:	As of
(in thousands)	April 1, 2022		December 31, 2021
Raw materials	$	26,491	$	22,245
Work-in-process	5,085		3,993
Finished goods	43,012		37,545
Service-related spares	7,228		7,412
Total	$	81,816	$	71,195


Property and equipment, net:	As of
(in thousands)	April 1, 2022		December 31, 2021
Machinery and equipment	$	79,483	$	78,461
Capitalized software	38,243		38,306
Leasehold improvements	40,659		40,658
Furniture and fixtures	2,991		2,820
Construction-in-progress	3,048		1,892
Property and equipment, gross	164,424		162,137
Less: accumulated depreciation and amortization	(121,847)		(119,416)
Total	$	42,577	$	42,721


Other current liabilities:	As of
(in thousands)	April 1, 2022		December 31, 2021
Accrued employee compensation and related expenses	$	19,749	$	26,820
Other	33,323		26,824
Total	$	53,072	$	53,644

COMMITMENTS AND CONTINGENCIES - Narrative (Details)	Apr. 01, 2022 USD ($)
Indemnification
Other Commitments [Line Items]
Accrual for indemnification provisions	$ 0

OTHER FINANCIAL STATEMENT INFORMATION (Tables)

3 Months Ended

Apr. 01, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accounts Receivable, Net

The following tables provide details of selected balance sheet components:


Accounts receivable, net:	As of
(in thousands)	April 1, 2022		December 31, 2021
Accounts receivable	$	119,414	$	91,382
Less: allowances for expected credit losses and sales returns	(3,820)		(2,853)
Total	$	115,594	$	88,529

Schedule of Inventories


Inventories:	As of
(in thousands)	April 1, 2022		December 31, 2021
Raw materials	$	26,491	$	22,245
Work-in-process	5,085		3,993
Finished goods	43,012		37,545
Service-related spares	7,228		7,412
Total	$	81,816	$	71,195

Schedule of Property and Equipment, Net


Property and equipment, net:	As of
(in thousands)	April 1, 2022		December 31, 2021
Machinery and equipment	$	79,483	$	78,461
Capitalized software	38,243		38,306
Leasehold improvements	40,659		40,658
Furniture and fixtures	2,991		2,820
Construction-in-progress	3,048		1,892
Property and equipment, gross	164,424		162,137
Less: accumulated depreciation and amortization	(121,847)		(119,416)
Total	$	42,577	$	42,721

Schedule of Other Current Liabilities


Other current liabilities:	As of
(in thousands)	April 1, 2022		December 31, 2021
Accrued employee compensation and related expenses	$	19,749	$	26,820
Other	33,323		26,824
Total	$	53,072	$	53,644

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Cash flows from operating activities:
Net loss	$ (1,529)	$ (6,124)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	3,111	3,057
Amortization of intangibles	0	507
Stock-based compensation	7,586	8,398
Amortization of convertible debt discount	297	1,532
Amortization of warrant	429	429
Foreign currency remeasurement	(563)	(2,609)
Deferred income taxes	627	432
Provision for expected credit losses and returns	1,348	1,089
Provision for excess and obsolete inventories	2,738	644
Other adjustments	77	143
Changes in operating assets and liabilities:
Accounts receivable	(28,479)	(20,758)
Inventories	(11,841)	(1,119)
Other assets	(3,949)	(1,019)
Accounts payable	(12,260)	13,527
Deferred revenues	18,408	11,285
Other liabilities	(3,482)	(7,736)
Net cash provided by (used in) operating activities	(27,482)	1,678
Cash flows from investing activities:
Purchases of property and equipment	(2,438)	(3,645)
Net cash used in investing activities	(2,438)	(3,645)
Cash flows from financing activities:
Repurchase of common stock	(2,141)	0
Repayment of other debts	(99)	(108)
Proceeds from common stock issued to employees	2,966	5,685
Payment of tax withholding obligations related to net share settlements of restricted stock units	(2,693)	(913)
Net cash provided by (used in) financing activities	(1,967)	4,664
Effect of exchange rate changes on cash and cash equivalents	(805)	(565)
Net increase (decrease) in cash and cash equivalents	(32,692)	2,132
Cash and cash equivalents at beginning of period	133,431	98,645
Cash and cash equivalents at end of period	100,739	100,777
Supplemental disclosures of cash flow information:
Income taxes, net of refunds	1,026	537
Interest payments	1,178	1,183
Supplemental schedule of non-cash investing and financing activities:
Capital expenditures incurred but not yet paid	$ 1,328	$ 973

FAIR VALUE MEASUREMENTS

3 Months Ended

Apr. 01, 2022

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

The Company’s financial instruments not measured at fair value on a recurring basis were as follows:


	April 1, 2022								December 31, 2021
	Carrying		Fair Value						Carrying		Fair Value
(in thousands)	Value		Level 1		Level 2		Level 3		Value		Level 1		Level 2		Level 3
2022 Notes	$	37,518	$	—	$	62,405	$	—	$	36,824	$	—	$	78,619	$	—
2024 Notes	$	113,324	$	—	$	148,432	$	—	$	98,941	$	—	$	173,419	$	—

The fair value of the Company’s convertible notes is influenced by interest rates, the Company’s stock price and stock market volatility. The difference between the carrying value and the fair value is primarily due to the spread between the conversion price and the market value of the shares underlying the conversion as of each respective balance sheet date.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

STOCKHOLDERS’ EQUITY - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Feb. 03, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of stock repurchased and retired during period	$ 2,141
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount		$ 100,000
Stock repurchased and retired during period (in shares)	233,000
Value of stock repurchased and retired during period	$ 2,100
Remaining stock repurchase authorization amount	$ 98,000
Stock Plan 1995
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)	5,610,238
Shares available for grant (in shares)	1,764,908
Director Option Plans 2002
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)	713,431
Shares available for grant (in shares)	527,984

SEGMENT INFORMATION

3 Months Ended

Apr. 01, 2022

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATIONOperating segments are defined as components of an enterprise that engage in business activities for which separate financial information is available and evaluated by the Company’s Chief Operating Decision Maker (the “CODM”), which for the Company is its Chief Executive Officer, in deciding how to allocate resources and assess performance. Based on the Company’s internal reporting structure, the Company consists of two operating segments: Video and Cable Access. The operating segments were determined based on the nature of the products offered. The Video segment provides video processing and production and playout solutions and services worldwide to broadcast and media companies, streaming new media companies, cable operators, and satellite and telecommunications Pay-TV service providers. The Cable Access segment provides cable access solutions and related services to cable operators globally. A measure of assets by segment is not applicable as segment assets are not included in the discrete financial information provided to the CODM.

The following table provides summary financial information by reportable segment:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Video
Revenue	$	65,842	$	70,331
Gross profit	38,684		38,774
Operating income	3,139		3,772
Cable Access
Revenue	$	81,597	$	41,245
Gross profit	31,011		17,408
Operating income	8,139		1,296
Total
Revenue	$	147,439	$	111,576
Gross profit	69,695		56,182
Operating income	$	11,278	$	5,068

A reconciliation of the Company’s consolidated segment operating income to consolidated income (loss) before income taxes is as follows:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Total consolidated segment operating income	$	11,278	$	5,068
Unallocated corporate expenses(1)	(1,156)		(7)
Stock-based compensation	(7,586)		(8,398)
Amortization of intangibles	—		(507)
Consolidated income (loss) from operations	2,536		(3,844)
Non-operating expense, net	(1,371)		(1,584)
Income (loss) before income taxes	$	1,165	$	(5,428)


Geographic Information	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Net revenue (1)
United States	$	86,878	$	67,095
Other countries	60,561		44,481
Total	$	147,439	$	111,576

(1) Revenue is attributed to countries based on the location of the customer.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

LEASES

3 Months Ended

Apr. 01, 2022

Leases [Abstract]

LEASES

The components of lease expense are as follows:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Operating lease cost	$	1,887	$	1,866
Variable lease cost	461		1,099
Total lease cost	$	2,348	$	2,965

Supplemental information related to leases are as follows:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Cash paid for amounts included in the measurement of operating lease liabilities	$	1,916	$	1,838
Right-of-use assets obtained in exchange for operating lease obligations	$	129	$	—

STOCKHOLDERS’ EQUITY - Restricted Stock Units Outstanding (Details) - Restricted stock units shares in Thousands	3 Months Ended
	Apr. 01, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares) \| shares	3,878
Granted (in shares) \| shares	1,548
Vested (in shares) \| shares	(1,744)
Forfeited (in shares) \| shares	(38)
Ending balance (in shares) \| shares	3,644
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in dollars per share) \| $ / shares	$ 7.31
Granted (in dollars per share) \| $ / shares	9.19
Vested (in dollars per share) \| $ / shares	7.22
Forfeited (in dollars per share) \| $ / shares	8.11
Ending balance (in dollars per share) \| $ / shares	$ 8.26

SEGMENT INFORMATION - Segment Income or Loss Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Segment Reporting Information [Line Items]
Total consolidated segment operating income (loss)	$ 2,536	$ (3,844)
Unallocated corporate expenses	(66,646)	(58,989)
Stock-based compensation	(7,586)	(8,398)
Amortization of intangibles	0	(507)
Non-operating expense, net	(1,371)	(1,584)
Income (loss) before income taxes	1,165	(5,428)
Operating segments
Segment Reporting Information [Line Items]
Total consolidated segment operating income (loss)	11,278	5,068
Corporate, non-segments
Segment Reporting Information [Line Items]
Unallocated corporate expenses	$ (1,156)	$ (7)

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

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+ Details

CONVERTIBLE DEBT (Tables)

3 Months Ended

Apr. 01, 2022

Debt Disclosure [Abstract]

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

The following table presents the components of the 2022 Notes:


	As of
(in thousands, except for years and percentages)	April 1, 2022		December 31, 2021
Liability component:
Principal amount	$	37,707	$	37,707
Less: Debt discount, net of amortization	—		(672)
Less: Debt issuance costs, net of amortization	(189)		(211)
Carrying amount	$	37,518	$	36,824
Remaining debt discount amortization period (years)	n/a		0.9
Effective interest rate on liability component	n/a		6.95		%

The following table presents the components of the 2024 Notes:


	As of
(in thousands, except for years and percentages)	April 1, 2022		December 31, 2021
Liability component:
Principal amount	$	115,500	$	115,500
Less: Debt discount, net of amortization	—		(14,576)
Less: Debt issuance costs, net of amortization	(2,176)		(1,983)
Carrying amount	$	113,324	$	98,941
Remaining debt discount amortization period (years)	n/a		2.7
Effective interest rate on liability component	n/a		7.95		%

Schedule of Convertible Debt Interest

The following table presents interest expense recognized for the 2022 Notes:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Contractual interest expense	$	412	$	412
Amortization of debt discount	—		166
Amortization of debt issuance costs	68		52
Total interest expense recognized	$	480	$	630

The following table presents interest expense recognized for the 2024 Notes:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Contractual interest expense	$	578	$	578
Amortization of debt discount	—		1,146
Amortization of debt issuance costs	217		156
Total interest expense recognized	$	795	$	1,880

BASIS OF PRESENTATION (Policies)	3 Months Ended
BASIS OF PRESENTATION (Policies)	Apr. 01, 2022
Accounting Policies [Abstract]
Use of Estimates	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates.
Reclassification	Certain prior period balances have been reclassified to conform to the current period’s presentation. These reclassifications did not have a material impact on previously reported financial statements.
Recent Accounting Pronouncements	In August 2020, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2020-06, Accounting for Convertible Instruments in an Entity’s Own Equity, which simplifies the accounting for convertible instruments and contracts on an entity’s own equity. The Company adopted this ASU on January 1, 2022 on a modified retrospective basis. Among other changes, ASU No. 2020-06 removes from U.S. GAAP the liability and equity separation model for convertible instruments with a cash conversion feature. As a result, the Company no longer separately presents in equity an embedded conversion feature for such debt. Similarly, the embedded conversion feature is no longer amortized into income as interest expense over the life of the instrument.
Segment Information	Operating segments are defined as components of an enterprise that engage in business activities for which separate financial information is available and evaluated by the Company’s Chief Operating Decision Maker (the “CODM”), which for the Company is its Chief Executive Officer, in deciding how to allocate resources and assess performance. Based on the Company’s internal reporting structure, the Company consists of two operating segments: Video and Cable Access. The operating segments were determined based on the nature of the products offered.
Indemnification	The Company is obligated to indemnify its officers and the members of its Board of Directors pursuant to its bylaws and contractual indemnity agreements. The Company also indemnifies some of its suppliers and most of its customers for specified intellectual property matters pursuant to certain contractual arrangements, subject to certain limitations. The scope of these indemnities varies, but, in some instances, includes indemnification for damages and expenses (including reasonable attorneys’ fees).

RECENT ACCOUNTING PRONOUNCEMENTS - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in interest expense, net	$ (1,433)	$ (2,603)
Basic net loss per share (in dollars per share)	$ (0.01)	$ (0.06)
Diluted net loss per share (in dollars per share)	$ (0.01)	$ (0.06)
Cumulative Effect, Period of Adoption, Adjustment \| ASU 2020-06
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in interest expense, net	$ 1,400
Basic net loss per share (in dollars per share)	$ (0.01)
Diluted net loss per share (in dollars per share)	$ (0.01)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

FAIR VALUE MEASUREMENTS - Financial Instruments not Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	$ 37,518	$ 36,824
Carrying Value	113,324	98,941
2022 Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	37,518	36,824
2024 Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	113,324	98,941
Fair Value, Nonrecurring \| 2022 Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	37,518	36,824
Fair Value, Nonrecurring \| 2022 Notes \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	62,405	78,619
Fair Value, Nonrecurring \| 2024 Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	113,324	98,941
Fair Value, Nonrecurring \| 2024 Notes \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 148,432	$ 173,419

RECENT ACCOUNTING PRONOUNCEMENTS

3 Months Ended

Apr. 01, 2022

Accounting Changes and Error Corrections [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

In August 2020, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2020-06, Accounting for Convertible Instruments in an Entity’s Own Equity, which simplifies the accounting for convertible instruments and contracts on an entity’s own equity. The Company adopted this ASU on January 1, 2022 on a modified retrospective basis. Among other changes, ASU No. 2020-06 removes from U.S. GAAP the liability and equity separation model for convertible instruments with a cash conversion feature. As a result, the Company no longer separately presents in equity an embedded conversion feature for such debt. Similarly, the embedded conversion feature is no longer amortized into income as interest expense over the life of the instrument. The cumulative effect of the ASU adoption was as follows:


			Adjustments from
	Balance at		Adoption of		Balance at
(in thousands)	December 31, 2021		ASU 2020-06		January 1, 2022
Liabilities
Convertible debt, current	$	36,824	$	626	$	37,450
Convertible debt, non-current	98,941		14,167		113,108
Mezzanine equity
Convertible debt	883		(883)		—
Equity
Additional paid-capital	2,387,039		(32,249)		2,354,790
Accumulated deficit	(2,087,957)		18,339		(2,069,618)

The impact of ASU adoption on the consolidated statement of operations for the three months ended April 1, 2022 was a decrease of net interest expense by $1.4 million. This had the effect of decreasing the basic and diluted net loss per share for the three months ended April 1, 2022 by approximately $0.01. The required use of if-converted method to calculate the impact of convertible notes on diluted earnings per share does not have a material impact. The Company is contractually required to settle the principal amount of 2022 Notes and 2024 Notes in cash. Accordingly, the dilutive effect of the Company's 2022 Notes and 2024 Notes will be limited to the conversion premium. The adoption of this ASU does not have any impact on the consolidated statement of cash flows.

From time to time, new accounting pronouncements are issued by the FASB, or other standards setting bodies, that are adopted by the Company as of the specified effective date. Unless otherwise discussed, the Company believes the impact of recently issued standards that are not yet effective will not have a material impact on its consolidated financial position, results of operations and cash flows upon adoption.

- Definition

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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+ Details

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Total net revenue	$ 147,439	$ 111,576
Total cost of revenue	78,257	56,431
Total gross profit	69,182	55,145
Operating expenses:
Research and development	28,833	23,528
Selling, general and administrative	36,643	34,911
Amortization of intangibles	0	507
Restructuring and related charges	1,170	43
Total operating expenses	66,646	58,989
Income (loss) from operations	2,536	(3,844)
Interest expense, net	(1,433)	(2,603)
Other income (expense), net	62	1,019
Income (loss) before income taxes	1,165	(5,428)
Provision for income taxes	2,694	696
Net loss	$ (1,529)	$ (6,124)
Net loss per share:
Basic (in dollars per share)	$ (0.01)	$ (0.06)
Diluted (in dollars per share)	$ (0.01)	$ (0.06)
Shares used in per share calculation:
Basic (in shares)	103,994	99,868
Diluted (in shares)	103,994	99,868
Appliance and integration
Total net revenue	$ 112,984	$ 79,976
Total cost of revenue	66,382	42,619
SaaS and service
Total net revenue	34,455	31,600
Total cost of revenue	$ 11,875	$ 13,812

REVENUE (Tables)

3 Months Ended

Apr. 01, 2022

Revenue from Contract with Customer [Abstract]

Schedule of Contract Assets and Deferred Revenue

Contract assets and deferred revenue consisted of the following:


	As of
(in thousands)	April 1, 2022		December 31, 2021
Contract assets	$	4,717	$	8,101
Deferred revenue	$	96,508	$	78,167

LEASES - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Leases [Abstract]
Operating lease cost	$ 1,887	$ 1,866
Variable lease cost	461	1,099
Total lease cost	2,348	2,965
Cash paid for amounts included in the measurement of operating lease liabilities	1,916	1,838
Right-of-use assets obtained in exchange for operating lease obligations	$ 129	$ 0

OTHER FINANCIAL STATEMENT INFORMATION - Other Current Liabilities (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued employee compensation and related expenses	$ 19,749	$ 26,820
Other	33,323	26,824
Total	$ 53,072	$ 53,644

EARNINGS PER SHARE - Antidilutive Securities (Details) - shares shares in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	8,106	6,154
Convertible debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	4,244	1,795
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	387	1,191
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	3,066	2,828
Stock purchase rights under the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	409	340

CONVERTIBLE DEBT - Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended
	Jun. 02, 2020 USD ($) day $ / shares	Sep. 13, 2019 USD ($) $ / shares	Apr. 01, 2022 USD ($) day $ / shares	Dec. 31, 2021 USD ($) $ / shares	Sep. 25, 2020 USD ($)
Debt Instrument [Line Items]
Common stock, par value (in dollars per share) \| $ / shares			$ 0.001	$ 0.001
2022 Notes
Debt Instrument [Line Items]
Debt instrument principal amount			$ 37,707	$ 37,707
Fair value of 2022 Notes used to settle 2020 Notes	$ 44,400
Unamortized debt discount				672
2022 Notes \| Stock price greater or equal 130 percent of note conversion rate
Debt Instrument [Line Items]
Debt instrument threshold trading days \| day			20
Debt instrument threshold consecutive trading days \| day			30
2022 Notes \| Senior notes
Debt Instrument [Line Items]
Debt instrument principal amount	$ 37,700		$ 37,500
Debt instrument stated percentage (as a percent)	4.375%
Common stock, par value (in dollars per share) \| $ / shares	$ 0.001
Debt instrument conversion ratio	173.9978
Debt instrument conversion price (in dollars per share) \| $ / shares	$ 5.75
Carrying amount of equity component	$ 8,300
Convertible debt	36,000
Unamortized debt discount	$ 1,700
2022 Notes \| Senior notes \| Stock price greater or equal 130 percent of note conversion rate
Debt Instrument [Line Items]
Debt instrument threshold trading days \| day	20
Debt instrument threshold consecutive trading days \| day	30
Debt instrument threshold percentage of stock price trigger (as a percent)	130.00%		130.00%
2022 Notes \| Senior notes \| Note price less than 98 percent of stock price times conversion rate
Debt Instrument [Line Items]
Debt instrument threshold trading days \| day	5
Debt instrument threshold consecutive trading days \| day	5
Debt instrument threshold percentage of stock price trigger (as a percent)	98.00%
2024 Notes
Debt Instrument [Line Items]
Debt instrument principal amount			$ 115,500	115,500
Unamortized debt discount				$ 14,576
2024 Notes \| Senior notes
Debt Instrument [Line Items]
Debt instrument principal amount		$ 115,500
Debt instrument stated percentage (as a percent)		2.00%
Common stock, par value (in dollars per share) \| $ / shares		$ 0.001
Debt instrument conversion ratio		115.5001
Debt instrument conversion price (in dollars per share) \| $ / shares		$ 8.66
Carrying amount of equity component					$ 24,900

BASIS OF PRESENTATION	3 Months Ended
BASIS OF PRESENTATION	Apr. 01, 2022
Accounting Policies [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION The condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") and include the accounts of Harmonic Inc. and its controlled subsidiaries (collectively, “Harmonic” or the “Company”). Intercompany accounts and transactions have been eliminated in consolidation. In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation of the Company's financial position as of balance sheet dates and its operating results and cash flows for the interim periods presented. Operating results for the three month period ended April 1, 2022 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2022. These unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2021. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. Certain prior period balances have been reclassified to conform to the current period’s presentation. These reclassifications did not have a material impact on previously reported financial statements. The Company’s significant accounting policies are described in Note 2 to its audited Consolidated Financial Statements included in the 2021 Form 10-K. There have been no significant changes to these policies during the three months ended April 1, 2022.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,529)	$ (6,124)
Other comprehensive income (loss) before tax:
Change in foreign currency translation adjustments	(1,702)	(4,249)
Other comprehensive loss before tax	(1,702)	(4,249)
Provision for (benefit from) income taxes	63	(268)
Other comprehensive loss, net of tax	(1,765)	(3,981)
Total comprehensive loss	$ (3,294)	$ (10,105)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

OTHER FINANCIAL STATEMENT INFORMATION - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 164,424	$ 162,137
Less: accumulated depreciation and amortization	(121,847)	(119,416)
Total	42,577	42,721
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	79,483	78,461
Capitalized software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	38,243	38,306
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	40,659	40,658
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,991	2,820
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,048	$ 1,892

RECENT ACCOUNTING PRONOUNCEMENTS - Cumulative Effect of ASU Adoption (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Liabilities
Convertible debt, current	$ 37,518	$ 36,824
Convertible debt, non-current	113,324	98,941
Mezzanine equity
Convertible debt		883
Equity
Additional paid-in capital	2,362,873	2,387,039
Accumulated deficit	$ (2,073,288)	(2,087,957)
Cumulative Effect, Period of Adoption, Adjustment \| ASU 2020-06
Liabilities
Convertible debt, current		626
Convertible debt, non-current		14,167
Mezzanine equity
Convertible debt		(883)
Equity
Additional paid-in capital		(32,249)
Accumulated deficit		18,339
Cumulative Effect, Period of Adoption, Adjusted Balance
Liabilities
Convertible debt, current		37,450
Convertible debt, non-current		113,108
Mezzanine equity
Convertible debt		0
Equity
Additional paid-in capital		2,354,790
Accumulated deficit		$ (2,069,618)

STOCKHOLDERS’ EQUITY (Tables)

3 Months Ended

Apr. 01, 2022

Equity [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table sets forth the detailed allocation of the share-based compensation expense which was included in the Company’s Condensed Consolidated Statements of Operations:


	Three Months Ended
(in thousands)	April 1, 2022		April 2, 2021
Cost of revenue	$	527	$	1,073
Research and development expense	2,536		2,540
Selling, general and administrative expense	4,523		4,785
Total	$	7,586	$	8,398

Schedule of Restricted Stock Units Outstanding


(in thousands, except per share amounts)	Number of Shares	Weighted Average Grant-Date Fair Value Per Share
Balance at December 31, 2021	3,878	$	7.31
Granted	1,548	9.19
Vested	(1,744)	7.22
Forfeited	(38)	8.11
Balance at April 1, 2022	3,644	$	8.26