Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2021		70,668,093
Beginning balance at Dec. 31, 2021	$ 2,597,146	$ 707	$ 1,709,276	$ 887,163	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	148,421			148,421
Shares issued under stock-based compensation programs, net (in shares)		498,921
Shares issued under stock-based compensation programs, net	(12,628)	$ 5	(12,633)
Cash dividends declared	(35,583)			(35,583)
Stock-based compensation expense	13,726		13,726
Forfeiture of restricted stock (in shares)		(4,769)
Ending balance (in shares) at Mar. 31, 2022		71,162,245
Ending balance at Mar. 31, 2022	2,711,082	$ 712	1,710,369	1,000,001	0
Beginning balance (in shares) at Dec. 31, 2021		70,668,093
Beginning balance at Dec. 31, 2021	2,597,146	$ 707	1,709,276	887,163	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	482,363
Other comprehensive income (loss)	0
Ending balance (in shares) at Sep. 30, 2022		71,254,143
Ending balance at Sep. 30, 2022	3,009,204	$ 713	1,745,750	1,262,741	0
Beginning balance (in shares) at Mar. 31, 2022		71,162,245
Beginning balance at Mar. 31, 2022	2,711,082	$ 712	1,710,369	1,000,001	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	189,542			189,542
Shares issued under stock-based compensation programs, net (in shares)		(1,573)
Shares issued under stock-based compensation programs, net	(58)		(58)
Cash dividends declared	(35,580)			(35,580)
Stock-based compensation expense	9,331		9,331
Forfeiture of restricted stock (in shares)		(2,797)
Ending balance (in shares) at Jun. 30, 2022		71,157,875
Ending balance at Jun. 30, 2022	2,874,317	$ 712	1,719,642	1,153,963	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	144,400			144,400
Other comprehensive income (loss)	0
Shares issued under stock-based compensation programs, net (in shares)		101,269
Shares issued under stock-based compensation programs, net	1,141	$ 1	1,140
Cash dividends declared	(35,622)			(35,622)
Stock-based compensation expense	24,968		24,968
Forfeiture of restricted stock (in shares)		(5,001)
Ending balance (in shares) at Sep. 30, 2022		71,254,143
Ending balance at Sep. 30, 2022	$ 3,009,204	$ 713	1,745,750	1,262,741	0
Beginning balance (in shares) at Dec. 31, 2022	72,585,596	72,585,596
Beginning balance at Dec. 31, 2022	$ 3,091,784	$ 726	1,784,173	1,306,885	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	80,700			80,700
Other comprehensive income (loss)	323				323
Shares issued under stock-based compensation programs, net (in shares)		503,022
Shares issued under stock-based compensation programs, net	(11,740)	$ 5	(11,745)
Cash dividends declared	(36,543)			(36,543)
Stock-based compensation expense	5,597		5,597
Forfeiture of restricted stock (in shares)		(1,283)
Ending balance (in shares) at Mar. 31, 2023		73,087,335
Ending balance at Mar. 31, 2023	$ 3,130,121	$ 731	1,778,025	1,351,042	323
Beginning balance (in shares) at Dec. 31, 2022	72,585,596	72,585,596
Beginning balance at Dec. 31, 2022	$ 3,091,784	$ 726	1,784,173	1,306,885	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	281,498
Other comprehensive income (loss)	$ 91
Ending balance (in shares) at Sep. 30, 2023	74,662,468	74,662,468
Ending balance at Sep. 30, 2023	$ 3,292,543	$ 747	1,817,494	1,474,211	91
Beginning balance (in shares) at Mar. 31, 2023		73,087,335
Beginning balance at Mar. 31, 2023	3,130,121	$ 731	1,778,025	1,351,042	323
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	93,493			93,493
Other comprehensive income (loss)	(233)				(233)
Shares issued under stock-based compensation programs, net (in shares)		1,459,256
Shares issued under stock-based compensation programs, net	31,332	$ 14	31,318
Cash dividends declared	(36,566)			(36,566)
Stock-based compensation expense	2,956		2,956
Forfeiture of restricted stock (in shares)		(2,370)
Ending balance (in shares) at Jun. 30, 2023		74,544,221
Ending balance at Jun. 30, 2023	3,221,103	$ 745	1,812,299	1,407,969	90
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	107,305			107,305	0
Other comprehensive income (loss)	1				1
Shares issued under stock-based compensation programs, net (in shares)		118,247
Shares issued under stock-based compensation programs, net	1,220	$ 2	1,218
Cash dividends declared	(41,063)			(41,063)
Stock-based compensation expense	$ 3,977		3,977
Ending balance (in shares) at Sep. 30, 2023	74,662,468	74,662,468
Ending balance at Sep. 30, 2023	$ 3,292,543	$ 747	$ 1,817,494	$ 1,474,211	$ 91