Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2023		171,599
Beginning Balance at Dec. 31, 2023	$ 1,504,752	$ 343	$ 1,037,202	$ 512,543	$ (45,336)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		294
Net issuance of common stock under stock plans	(2,861)	$ 0	(2,861)
Repurchase of common stock (in shares)		(231)
Repurchase of common stock	(9,339)	$ 0		(9,339)
Stock-based compensation expense	13,302		13,302
Payment of dividends	(12,888)			(12,888)
Net income	12,022			12,022
Net unrealized gain (loss) on available-for-sale investments, net of tax	359				359
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	(2)				(2)
Foreign currency translation adjustment	(16,156)				(16,156)
Ending Balance (in shares) at Mar. 31, 2024		171,662
Ending Balance at Mar. 31, 2024	$ 1,489,189	$ 343	1,047,643	502,338	(61,135)
Beginning Balance (in shares) at Dec. 31, 2024	170,434	170,434
Beginning Balance at Dec. 31, 2024	$ 1,517,505	$ 341	1,090,638	499,303	(72,777)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		478
Net issuance of common stock under stock plans	(2,587)	$ 1	(2,588)
Repurchase of common stock (in shares)		(3,047)
Repurchase of common stock	(103,413)	$ (6)		(103,407)
Stock-based compensation expense	9,939		9,939
Payment of dividends	(13,550)			(13,550)
Net income	23,603			23,603
Net unrealized gain (loss) on available-for-sale investments, net of tax	2,711				2,711
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	(27)				(27)
Foreign currency translation adjustment	$ 11,447				11,447
Ending Balance (in shares) at Mar. 30, 2025	167,865	167,865
Ending Balance at Mar. 30, 2025	$ 1,445,628	$ 336	$ 1,097,989	$ 405,949	$ (58,646)