Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2022	47,107,000
Balance at Dec. 31, 2022	$ 975,276	$ 716,403	$ (23,077)	$ 1,668,602
Net income	0	109,802	0	109,802
Other comprehensive loss	0	0	5,132	5,132
Dividends and dividend equivalents declared	$ 0	(49,130)	0	(49,130)
Common stock issued under the employee equity incentive plan (in shares)	295,000
Common stock issued under the employee equity incentive plan	$ 1,110	0	0	1,110
Common stock issued under the employee stock purchase plan (in shares)	9,000
Common stock issued under the employee stock purchase plan	$ 3,737	0	0	3,737
Stock-based compensation expense	$ 37,008	0	0	37,008
Balance (in shares) at Mar. 31, 2023	47,411,000
Balance at Mar. 31, 2023	$ 1,017,131	777,075	(17,945)	$ 1,776,261
Balance (in shares) at Dec. 31, 2023	48,028,000			48,028,000
Balance at Dec. 31, 2023	$ 1,129,937	947,064	(27,062)	$ 2,049,939
Net income	0	92,541	0	92,541
Other comprehensive loss	0	0	(13,487)	(13,487)
Dividends and dividend equivalents declared	$ 0	(61,881)	0	(61,881)
Common stock issued under the employee equity incentive plan (in shares)	634,000
Common stock issued under the employee equity incentive plan	$ 0	0	0	0
Common stock issued under the employee stock purchase plan (in shares)	11,000
Common stock issued under the employee stock purchase plan	$ 4,606	0	0	$ 4,606
Repurchases of common stock (in shares)	(6,000)			(6,100)
Repurchases of common stock	$ (4,076)	0	0	$ (4,076)
Stock-based compensation expense	$ 45,915	0	0	$ 45,915
Balance (in shares) at Mar. 31, 2024	48,667,000			48,667,000
Balance at Mar. 31, 2024	$ 1,176,382	$ 977,724	$ (40,549)	$ 2,113,557