Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2024 and December 31, 2023, were as follows:

	March 31, 2024
(In thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
U.S. treasury securities	$	108,138	$	—	$	(38	)	$	108,100
Convertible debt		173		—		—			173
Total	$	108,311	$	—	$	(38	)	$	108,273

	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 March 31, 2024 and December 31, 2023:

	March 31, 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	$	108,100	$	(38	)	$	—	$	—	$	108,100	$	(38	)
Total	$	108,100	$	(38	)	$	—	$	—	$	108,100	$	(38	)

	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)	March 31, 2024		December 31, 2023
Raw materials	$	21,714	$	19,955
Finished goods		189,556		228,896
Total	$	211,270	$	248,851

Schedule of Property and Equipment, Net

Property and equipment, net

(In thousands)	March 31, 2024			December 31, 2023
Computer equipment	$	5,335		$	5,458
Furniture, fixtures, and leasehold improvements		18,637			18,205
Software		24,428			25,760
Machinery and equipment		49,442			47,826
Total property and equipment, gross		97,842			97,249
Accumulated depreciation		(88,489	)		(88,976	)
Total	$	9,353		$	8,273

Schedule of Other Non-Current Assets

Other non-current assets

(In thousands)	March 31, 2024		December 31, 2023
Non-current deferred income taxes	$	3,251	$	3,343
Long-term investments		8,266		8,367
Other		5,777		5,616
Total	$	17,294	$	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 and investments in limited partnership funds. The changes in the carrying value of equity investments without readily determinable fair values were as follows:

	Three months ended
(In thousands)	March 31, 2024		April 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 $2.2 million as of March 31, 2024, $1.6 million as of April 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 convertible debt securities of $0.2 million as of March 31, 2024, December 31, 2023, April 2, 2023, and December 31, 2022, respectively.

Schedule of Other Accrued Liabilities

Other accrued liabilities

(In thousands)	March 31, 2024		December 31, 2023
Current operating lease liabilities	$	11,306	$	11,869
Sales and marketing		65,725		75,535
Warranty obligations		5,087		5,738
Sales returns(1)		35,713		34,824
Freight and duty		3,412		2,837
Other		33,324		37,281
Total	$	154,567	$	168,084

(1)Inventory expected to be received from future sales returns amounted to $17.4 million and $16.9 million as of March 31, 2024 and December 31, 2023, respectively. Provisions to write down expected returned inventory to net realizable value amounted to $8.6 million and $9.7 million as of March 31, 2024 and December 31, 2023, respectively.