Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2024

Balance Sheet Related Disclosures [Abstract]

Schedule of Amortized Cost and Estimated Fair Market Value of Investments Classified as Available-for-Sale Excluding Cash Equivalents

Amortized cost and estimated fair market value of investments classified as available-for-sale, excluding cash equivalents, as of June 30, 2024 and December 31, 2023, were as follows:

	June 30, 2024
(In thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
U.S. treasury securities	$	108,341	$	—	$	(91	)	$	108,250
Corporate equity securities		262		—		—			262
Total	$	108,603	$	—	$	(91	)	$	108,512

	December 31, 2023
(In thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
U.S. treasury securities	$	98,326	$	128	$	—	$	98,454
Convertible debt		173		—		—		173
Total	$	98,499	$	128	$	—	$	98,627

Schedule of Investments Classified as Available-for-Sale in Continuous Unrealized Loss Position

The following table summarizes investments classified as available-for-sale in a continuous unrealized loss position for which an allowance for credit losses was not recorded as of June 30, 2024 and December 31, 2023:

	June 30, 2024
	Less Than 12 Months					12 Months or Longer				Total
(In thousands)	Estimated Fair Market Value		Gross Unrealized Losses			Estimated Fair Market Value		Gross Unrealized Losses		Estimated Fair Market Value		Gross Unrealized Losses
U.S. treasury securities	$	108,250	$	(91	)	$	—	$	—	$	108,250	$	(91	)
Total	$	108,250	$	(91	)	$	—	$	—	$	108,250	$	(91	)

	December 31, 2023
	Less Than 12 Months				12 Months or Longer				Total
(In thousands)	Estimated Fair Market Value		Gross Unrealized Losses		Estimated Fair Market Value		Gross Unrealized Losses		Estimated Fair Market Value		Gross Unrealized Losses
U.S. treasury securities	$	98,454	$	—	$	—	$	—	$	98,454	$	—
Total	$	98,454	$	—	$	—	$	—	$	98,454	$	—

Schedule of Inventories

Inventories

(In thousands)	June 30, 2024		December 31, 2023
Raw materials	$	21,748	$	19,955
Finished goods		167,188		228,896
Total	$	188,936	$	248,851

Schedule of Property and Equipment, Net

Property and equipment, net

(In thousands)	June 30, 2024			December 31, 2023
Machinery and equipment	$	51,497		$	47,826
Furniture, fixtures, and leasehold improvements		19,641			18,205
Software		24,337			25,760
Computer equipment		5,336			5,458
Total property and equipment, gross		100,811			97,249
Accumulated depreciation		(89,770	)		(88,976	)
Total	$	11,041		$	8,273

Schedule of Other Non-Current Assets

Other non-current assets

(In thousands)	June 30, 2024		December 31, 2023
Non-current deferred income taxes	$	2,801	$	3,343
Long-term investments		8,336		8,367
Other		4,663		5,616
Total	$	15,800	$	17,326

Schedule of Changes in Carrying Value of Long-term Equity Investments

Long-term equity investments

The Company’s long-term investments are comprised of equity investments without readily determinable fair values, investments in convertible debt securities or corporate equity securities and investments in limited partnership funds. The changes in the carrying value of equity investments without readily determinable fair values were as follows:

	Six months ended
(In thousands)	June 30, 2024		July 2, 2023
Carrying value as of the beginning of the period (1)	$	6,053	$	6,053
Carrying value as of the end of the period (1)	$	6,053	$	6,053

The balances excluded an investment in limited partnership funds of $2.3 million as of June 30, 2024, $1.8 million as of July 2, 2023, $2.3 million as of December 31, 2023, and $1.7 million as of December 31, 2022. Additionally, the balance excluded an investment in corporate equity securities of $0.3 million as of June 30, 2024, an investment in convertible debt securities of $0.2 million as of December 31, 2023, July 2, 2023, and December 31, 2022, respectively.

Schedule of Other Accrued Liabilities

Other accrued liabilities

(In thousands)	June 30, 2024		December 31, 2023
Current operating lease liabilities	$	11,927	$	11,869
Sales and marketing		59,912		75,535
Warranty obligations		4,771		5,738
Sales returns(1)		31,478		34,824
Freight and duty		3,921		2,837
Other		47,577		37,281
Total	$	159,586	$	168,084

(1)Inventory expected to be received from future sales returns amounted to $15.5 million and $16.9 million as of June 30, 2024 and December 31, 2023, respectively. Provisions to write down expected returned inventory to net realizable value amounted to $8.9 million and $9.7 million as of June 30, 2024 and December 31, 2023, respectively.