Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Balance at beginning of period (in shares) at Dec. 31, 2020		113,128
Balance at beginning of period at Dec. 31, 2020	$ 1,205,289	$ 113	$ 1,179,972	$ (4,732)	$ 29,936
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	110,598				110,598
Other comprehensive income (loss)	(8,797)			(8,797)
Dividends declared	(43,300)				(43,300)
Net issuances of restricted stock (in shares)		602
Net issuances of restricted stock	0	$ 1	(1)
Stock-based compensation	14,182		14,182
Repurchases of common stock (in shares)		(1,048)
Repurchases of common stock	(80,273)	$ (1)			(80,272)
Balance at end of period (in shares) at Mar. 31, 2021		112,682
Balance at end of period at Mar. 31, 2021	1,197,699	$ 113	1,194,153	(13,529)	16,962
Balance at beginning of period (in shares) at Dec. 31, 2021		110,686
Balance at beginning of period at Dec. 31, 2021	1,381,051	$ 111	1,235,903	(22,622)	167,659
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	168,239				168,239
Other comprehensive income (loss)	(952)			(952)
Dividends declared	(48,413)				(48,413)
Net issuances of restricted stock (in shares)		598
Net issuances of restricted stock	0	$ 1	(1)
Stock-based compensation	15,184		15,184
Repurchases of common stock (in shares)		(537)
Repurchases of common stock	(62,341)	$ (1)			(62,340)
Balance at end of period (in shares) at Mar. 31, 2022		110,747
Balance at end of period at Mar. 31, 2022	$ 1,452,768	$ 111	$ 1,251,086	$ (23,574)	$ 225,145