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
Other comprehensive income (loss)	0
Unrealized gain (loss) related to available-for-sale debt securities	0				0
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)
Forfeiture of restricted stock	0
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, 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
Unrealized gain (loss) related to available-for-sale debt securities	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)
Forfeiture of restricted stock	$ 0
Ending balance (in shares) at Mar. 31, 2023	73,087,335	73,087,335
Ending balance at Mar. 31, 2023	$ 3,130,121	$ 731	$ 1,778,025	$ 1,351,042	$ 323