Condensed Consolidated Statement Of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2021	$ 1,092,875	$ 284	$ 220,459	$ 930,795	$ (501)	$ (58,162)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	196,181			196,181
Issuance of shares of common stock pursuant to stock-based awards, net of shares tendered for payment of taxes	(10,569)	1	(10,570)
Stock-based compensation expense	6,517		6,517
Other comprehensive income (loss)	(2,882)				(2,882)
Cash dividends	(22,870)			(22,870)
Dividend equivalents on stock-based awards	0		392	(392)
Ending balance at Mar. 31, 2022	1,259,252	285	216,798	1,103,714	(3,383)	(58,162)
Beginning balance at Dec. 31, 2022	1,381,008	285	234,956	1,221,279	6,704	(82,216)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,259			7,259
Issuance of shares of common stock pursuant to stock-based awards, net of shares tendered for payment of taxes	(8,888)	1	(8,889)
Stock-based compensation expense	4,695		4,695
Other comprehensive income (loss)	2,000				2,000
Cash dividends	(26,563)			(26,563)
Dividend equivalents on stock-based awards	0		532	(532)
Ending balance at Mar. 31, 2023	$ 1,359,511	$ 286	$ 231,294	$ 1,201,443	$ 8,704	$ (82,216)