CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Series B Preferred Stock	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Retained Earnings Series B Preferred Stock	Treasury Stock
Beginning balance, shares issued (in shares) at Dec. 31, 2022			2,510,696	435,121,140
Beginning balance (in shares) at Dec. 31, 2022									(194,445,696)
Beginning balance (in shares) at Dec. 31, 2022				240,675,444
Beginning balance at Dec. 31, 2022	$ 1,726,970		$ 251,070	$ 87,025	$ 1,109,072	$ (93,870)	$ 3,163,640		$ (2,789,967)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	383,583						383,583
Other comprehensive loss, net of tax	10,306					10,306
Total comprehensive income	393,889
Cash dividends declared:
Common Stock	$ (51,938)						(51,938)
Preferred Stock		$ (8,337)						$ (8,337)
Issuance of common shares (in shares)	2,872,753			2,872,753
Issuance of common shares	$ (5)			$ 574	637		(1,216)
Stock-based compensation expense	$ 19,828				19,828
Common stock repurchased (in shares)	(16,389,696)			(16,389,696)					(16,389,696)
Common stock repurchased	$ (257,402)								$ (257,402)
Shares repurchased related to employee stock-based compensation plans (in shares)	(1,077,643)			(1,077,643)					(1,077,643)
Shares repurchased related to employee stock-based compensation plans	$ (16,641)								$ (16,641)
Ending balance, shares issued (in shares) at Jun. 30, 2023			2,510,696	437,993,893
Ending balance (in shares) at Jun. 30, 2023									(211,913,035)
Ending balance (in shares) at Jun. 30, 2023				226,080,858
Ending balance at Jun. 30, 2023	1,806,364		$ 251,070	$ 87,599	1,129,537	(83,564)	3,485,732		$ (3,064,010)
Beginning balance, shares issued (in shares) at Mar. 31, 2023			2,510,696	437,644,884
Beginning balance (in shares) at Mar. 31, 2023									(195,395,127)
Beginning balance (in shares) at Mar. 31, 2023				242,249,757
Beginning balance at Mar. 31, 2023	1,827,095		$ 251,070	$ 87,530	1,121,082	(78,333)	3,250,478		$ (2,804,732)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	265,065						265,065
Other comprehensive loss, net of tax	(5,231)					(5,231)
Total comprehensive income	259,834
Cash dividends declared:
Common Stock	$ (25,303)						(25,303)
Preferred Stock		(4,274)						(4,274)
Issuance of common shares (in shares)	349,009			349,009
Issuance of common shares	$ (2)			$ 69	163		(234)
Stock-based compensation expense	$ 8,292				8,292		0
Common stock repurchased (in shares)	(16,389,696)			(16,389,696)					(16,389,696)
Common stock repurchased	$ (257,402)								$ (257,402)
Shares repurchased related to employee stock-based compensation plans (in shares)	(128,212)			(128,212)					(128,212)
Shares repurchased related to employee stock-based compensation plans	$ (1,876)								$ (1,876)
Ending balance, shares issued (in shares) at Jun. 30, 2023			2,510,696	437,993,893
Ending balance (in shares) at Jun. 30, 2023									(211,913,035)
Ending balance (in shares) at Jun. 30, 2023				226,080,858
Ending balance at Jun. 30, 2023	$ 1,806,364		$ 251,070	$ 87,599	1,129,537	(83,564)	3,485,732		$ (3,064,010)
Beginning balance, shares issued (in shares) at Dec. 31, 2023			2,510,696	438,230,416
Beginning balance (in shares) at Dec. 31, 2023	(217,900,000)								(217,886,532)
Beginning balance (in shares) at Dec. 31, 2023				220,343,884
Beginning balance at Dec. 31, 2023	$ 1,880,797		$ 251,070	$ 87,647	1,148,689	(75,104)	3,624,859		$ (3,156,364)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	541,924						541,924
Other comprehensive loss, net of tax	(3,705)					(3,705)
Total comprehensive income	538,219
Cash dividends declared:
Common Stock	$ (48,305)						(48,305)
Preferred Stock		(9,281)						(9,281)
Issuance of common shares (in shares)	2,049,231			2,049,231
Issuance of common shares	$ 871			$ 409	1,679		(1,217)
Stock-based compensation expense	$ 23,367				23,367
Common stock repurchased (in shares)	(4,240,369)			(4,240,369)					(4,240,369)
Common stock repurchased	$ (88,658)								$ (88,658)
Shares repurchased related to employee stock-based compensation plans (in shares)	(691,386)			(691,386)					(691,386)
Shares repurchased related to employee stock-based compensation plans	$ (13,772)								$ (13,772)
Ending balance, shares issued (in shares) at Jun. 30, 2024			2,510,696	440,279,647
Ending balance (in shares) at Jun. 30, 2024	(222,800,000)								(222,818,287)
Ending balance (in shares) at Jun. 30, 2024				217,461,360
Ending balance at Jun. 30, 2024	$ 2,283,238		$ 251,070	$ 88,056	1,173,735	(78,809)	4,107,980		$ (3,258,794)
Beginning balance, shares issued (in shares) at Mar. 31, 2024			2,510,696	440,156,336
Beginning balance (in shares) at Mar. 31, 2024									(219,880,502)
Beginning balance (in shares) at Mar. 31, 2024				220,275,834
Beginning balance at Mar. 31, 2024	2,113,739		$ 251,070	$ 88,032	1,163,838	(77,291)	3,884,694		$ (3,196,604)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	251,993						251,993
Other comprehensive loss, net of tax	(1,518)					(1,518)
Total comprehensive income	250,475
Cash dividends declared:
Common Stock	$ (24,027)						(24,027)
Preferred Stock		$ (4,628)						$ (4,628)
Issuance of common shares (in shares)	123,311			123,311
Issuance of common shares	$ 292			$ 24	320		(52)
Stock-based compensation expense	$ 9,577				9,577
Common stock repurchased (in shares)	(2,929,646)			(2,929,646)					(2,929,646)
Common stock repurchased	$ (62,019)								$ (62,019)
Shares repurchased related to employee stock-based compensation plans (in shares)	(8,139)			(8,139)					(8,139)
Shares repurchased related to employee stock-based compensation plans	$ (171)								$ (171)
Ending balance, shares issued (in shares) at Jun. 30, 2024			2,510,696	440,279,647
Ending balance (in shares) at Jun. 30, 2024	(222,800,000)								(222,818,287)
Ending balance (in shares) at Jun. 30, 2024				217,461,360
Ending balance at Jun. 30, 2024	$ 2,283,238		$ 251,070	$ 88,056	$ 1,173,735	$ (78,809)	$ 4,107,980		$ (3,258,794)