CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Total
Balance at Dec. 31, 2022	$ 5		$ 3,471,044	$ 3,471,049
Balance (in shares) at Dec. 31, 2022	49,988
Changes in stockholders' equity
Net income			181,498	181,498
Stock based compensation		$ 23,005		23,005
Stock based compensation (in shares)	1,137
Issuance of common stock in settlement of directors' fees		102		102
Issuance of common stock in settlement of director fees (in shares)	2
Common stock dividends			(31,206)	(31,206)
Repurchase of common stock		(11,632)	(59,943)	(71,575)
Repurchase of common stock (in shares)	(1,201)
Balance at Sep. 30, 2023	$ 5	11,475	3,561,393	3,572,873
Balance (in shares) at Sep. 30, 2023	49,926
Balance at Jun. 30, 2023	$ 5		3,478,755	3,478,760
Balance (in shares) at Jun. 30, 2023	49,858
Changes in stockholders' equity
Net income			92,870	92,870
Stock based compensation		11,475		11,475
Stock based compensation (in shares)	68
Common stock dividends			(10,232)	(10,232)
Balance at Sep. 30, 2023	$ 5	11,475	3,561,393	3,572,873
Balance (in shares) at Sep. 30, 2023	49,926
Balance at Dec. 31, 2023	$ 5	24,287	3,514,311	3,538,603
Balance (in shares) at Dec. 31, 2023	50,179
Changes in stockholders' equity
Net income			206,934	206,934
Stock based compensation		29,929		29,929
Stock based compensation (in shares)	1,077
Issuance of common stock in settlement of directors' fees		199		199
Issuance of common stock in settlement of director fees (in shares)	2
Common stock dividends			(36,487)	(36,487)
Balance at Sep. 30, 2024	$ 5	54,415	3,684,758	3,739,178
Balance (in shares) at Sep. 30, 2024	51,258
Balance at Jun. 30, 2024	$ 5	30,053	3,631,060	3,661,118
Balance (in shares) at Jun. 30, 2024	51,017
Changes in stockholders' equity
Net income			69,368	69,368
Stock based compensation		24,305		24,305
Stock based compensation (in shares)	240
Issuance of common stock in settlement of directors' fees		57		57
Issuance of common stock in settlement of director fees (in shares)	1
Common stock dividends	$ 0	0	(15,670)	(15,670)
Balance at Sep. 30, 2024	$ 5	$ 54,415	$ 3,684,758	$ 3,739,178
Balance (in shares) at Sep. 30, 2024	51,258