Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities
Net income	$ 28,579	$ 51,595
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,309	3,775
Deferred income taxes	(1,057)	(1,097)
Stock-based compensation expense	4,903	4,690
Provision for doubtful accounts		(459)
Provision for excess and obsolete inventory	875	1,445
Accretion of discounts and premiums on marketable securities	(618)	(3,306)
Unrealized currency (gain) loss on foreign denominated transactions	(752)	6,560
Mark-to-market adjustment on forward exchange contracts	(130)
Changes in operating assets and liabilities:
Accounts receivable	38,586	7,042
Inventories	(12,386)	(11,427)
Prepaid expenses and other current assets	1,311	(5,489)
Accounts payable and other current liabilities	(25,844)	(29,118)
Deferred revenue	1,106	(1,963)
Income taxes	2,194	21,374
Other assets and liabilities	(1,281)	(1,399)
Net cash provided by operating activities	39,795	42,223
Cash flows from investing activities
Expenditures for property, plant and equipment and capitalized software	(4,960)	(1,620)
Purchase of short-term investments	(252,495)	(145,121)
Maturities and sales of short-term investments	297,924	91,050
Net cash provided by (used in) investing activities	40,469	(55,691)
Cash flows from financing activities
Net settlement on restricted stock grants	(1,583)	(2,699)
Repurchase of common stock	(18,178)	(14,999)
Principal payments on finance lease obligation	(349)	(357)
Net cash used in financing activities	(20,110)	(18,055)
Effect of exchange rate changes on cash and cash equivalents	292	(1,813)
Net increase (decrease) in cash, cash equivalents and restricted cash	60,446	(33,336)
Cash, cash equivalents and restricted cash at beginning of period	131,064	173,951
Cash, cash equivalents and restricted cash at end of period	$ 191,510	$ 140,615