CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Series B Preferred Stock	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Retained Earnings Series B Preferred Stock	Treasury Stock
Beginning balance, shares issued (in shares) at Dec. 31, 2020			2,510,696	456,729,251
Beginning balance (in shares) at Dec. 31, 2020									(81,441,252)
Beginning balance (in shares) at Dec. 31, 2020				375,287,999
Beginning balance at Dec. 31, 2020	$ 2,562,835		$ 251,070	$ 91,346	$ 1,331,247	$ (34,200)	$ 1,722,365		$ (798,993)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,160,513						1,160,513
Other comprehensive income (loss), net of tax	16,303					16,303
Total comprehensive income	1,176,816
Cash dividends declared:
Common stock	(60,462)						(60,462)
Preferred stock		$ (4,736)						$ (4,736)
Dividend equivalent units related to employee stock-based compensation plans	$ (16)				530		(546)
Issuance of common shares (in shares)	3,786,581			3,786,581
Issuance of common shares	$ 4,891			$ 757	4,134
Stock-based compensation expense	30,649				30,649
Common stock repurchased and cancelled (in shares)				(28,502,460)
Common stock repurchased and cancelled	$ (472,560)			$ (5,700)	(466,860)
Common stock repurchased (in shares)	(98,748,905)			(70,246,445)					(70,246,445)
Common stock repurchased	$ (1,067,583)				174,684				$ (1,242,267)
Shares repurchased related to employee stock-based compensation plans (in shares)	(1,368,942)			(1,368,942)					(1,368,942)
Shares repurchased related to employee stock-based compensation plans	$ (20,123)								$ (20,123)
Ending balance, shares issued (in shares) at Dec. 31, 2021			2,510,696	432,013,372
Ending balance (in shares) at Dec. 31, 2021									(153,056,639)
Ending balance (in shares) at Dec. 31, 2021				278,956,733
Ending balance at Dec. 31, 2021	2,149,711		$ 251,070	$ 86,403	1,074,384	(17,897)	2,817,134		$ (2,061,383)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	469,014						469,014
Other comprehensive income (loss), net of tax	(75,973)					(75,973)
Total comprehensive income	393,041
Cash dividends declared:
Common stock	$ (112,961)						(112,961)
Preferred stock		(9,029)						(9,029)
Issuance of common shares (in shares)	3,107,768			3,107,768
Issuance of common shares	$ 433			$ 622	618		(807)
Stock-based compensation expense	$ 34,359				34,070		289
Common stock repurchased (in shares)	(40,253,548)			(40,253,548)					(40,253,548)
Common stock repurchased	$ (707,742)				0				$ (707,742)
Shares repurchased related to employee stock-based compensation plans (in shares)	(1,135,509)			(1,135,509)					(1,135,509)
Shares repurchased related to employee stock-based compensation plans	$ (20,842)								$ (20,842)
Ending balance, shares issued (in shares) at Dec. 31, 2022			2,510,696	435,121,140
Ending balance (in shares) at Dec. 31, 2022	(194,400,000)								(194,445,696)
Ending balance (in shares) at Dec. 31, 2022				240,675,444
Ending 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	581,391						581,391
Other comprehensive income (loss), net of tax	18,766					18,766
Total comprehensive income	600,157
Cash dividends declared:
Common stock	$ (101,233)						(101,233)
Preferred stock		$ (17,705)						$ (17,705)
Issuance of common shares (in shares)	3,109,276			3,109,276
Issuance of common shares	$ 2,625			$ 622	3,237		(1,234)
Stock-based compensation expense	$ 36,380				36,380		0
Common stock repurchased (in shares)	(22,341,595)			(22,341,595)					(22,341,595)
Common stock repurchased	$ (349,397)				0				$ (349,397)
Shares repurchased related to employee stock-based compensation plans (in shares)	(1,099,241)			(1,099,241)					(1,099,241)
Shares repurchased related to employee stock-based compensation plans	$ (17,000)								$ (17,000)
Ending balance, shares issued (in shares) at Dec. 31, 2023			2,510,696	438,230,416
Ending balance (in shares) at Dec. 31, 2023	(217,900,000)								(217,886,532)
Ending balance (in shares) at Dec. 31, 2023				220,343,884
Ending balance at Dec. 31, 2023	$ 1,880,797		$ 251,070	$ 87,647	$ 1,148,689	$ (75,104)	$ 3,624,859		$ (3,156,364)