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 Income (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	412,948						412,948
Other comprehensive loss, net of tax	(7,445)					(7,445)
Total comprehensive income (loss)	405,503
Cash dividends declared:
Common Stock	$ (76,817)						(76,817)
Preferred Stock		$ (12,979)						$ (12,979)
Issuance of common shares (in shares)	3,073,639			3,073,639
Issuance of common shares	$ 2,624			$ 614	3,227		(1,217)
Stock-based compensation expense	$ 28,300				28,300
Common stock repurchased (in shares)	(16,389,696)			(16,389,696)					(16,389,696)
Common stock repurchased	$ (257,563)								$ (257,563)
Shares repurchased related to employee stock-based compensation plans (in shares)	(1,088,330)			(1,088,330)					(1,088,330)
Shares repurchased related to employee stock-based compensation plans	$ (16,814)								$ (16,814)
Ending balance, shares issued (in shares) at Sep. 30, 2023			2,510,696	438,194,779
Ending balance (in shares) at Sep. 30, 2023									(211,923,722)
Ending balance (in shares) at Sep. 30, 2023				226,271,057
Ending balance at Sep. 30, 2023	1,799,224		$ 251,070	$ 87,639	1,140,599	(101,315)	3,485,575		$ (3,064,344)
Beginning balance, shares issued (in shares) at Jun. 30, 2023			2,510,696	437,993,893
Beginning balance (in shares) at Jun. 30, 2023									(211,913,035)
Beginning balance (in shares) at Jun. 30, 2023				226,080,858
Beginning balance at Jun. 30, 2023	1,806,364		$ 251,070	$ 87,599	1,129,537	(83,564)	3,485,732		$ (3,064,010)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,365						29,365
Other comprehensive loss, net of tax	(17,751)					(17,751)
Total comprehensive income (loss)	11,614
Cash dividends declared:
Common Stock	$ (24,879)						(24,879)
Preferred Stock		(4,642)						(4,642)
Issuance of common shares (in shares)	200,886			200,886
Issuance of common shares	$ 2,629			$ 40	2,590		(1)
Stock-based compensation expense	$ 8,472				8,472		0
Common stock repurchased (in shares)	0			0					0
Common stock repurchased	$ (161)								$ (161)
Shares repurchased related to employee stock-based compensation plans (in shares)	(10,687)			(10,687)					(10,687)
Shares repurchased related to employee stock-based compensation plans	$ (173)								$ (173)
Ending balance, shares issued (in shares) at Sep. 30, 2023			2,510,696	438,194,779
Ending balance (in shares) at Sep. 30, 2023									(211,923,722)
Ending balance (in shares) at Sep. 30, 2023				226,271,057
Ending balance at Sep. 30, 2023	$ 1,799,224		$ 251,070	$ 87,639	1,140,599	(101,315)	3,485,575		$ (3,064,344)
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	496,772						496,772
Other comprehensive loss, net of tax	24,765					24,765
Total comprehensive income (loss)	521,537
Cash dividends declared:
Common Stock	$ (71,834)						(71,834)
Preferred Stock		(13,929)						(13,929)
Issuance of common shares (in shares)	2,298,280			2,298,280
Issuance of common shares	$ 3,988			$ 459	4,757		(1,228)
Stock-based compensation expense	$ 31,741				31,741
Common stock repurchased (in shares)	(9,585,395)			(9,585,395)					(9,585,395)
Common stock repurchased	$ (203,996)								$ (203,996)
Shares repurchased related to employee stock-based compensation plans (in shares)	(726,302)			(726,302)					(726,302)
Shares repurchased related to employee stock-based compensation plans	$ (14,554)								$ (14,554)
Ending balance, shares issued (in shares) at Sep. 30, 2024			2,510,696	440,528,696
Ending balance (in shares) at Sep. 30, 2024	(228,200,000)								(228,198,229)
Ending balance (in shares) at Sep. 30, 2024				212,330,467
Ending balance at Sep. 30, 2024	$ 2,133,750		$ 251,070	$ 88,106	1,185,187	(50,339)	4,034,640		$ (3,374,914)
Beginning balance, shares issued (in shares) at Jun. 30, 2024			2,510,696	440,279,647
Beginning balance (in shares) at Jun. 30, 2024									(222,818,287)
Beginning balance (in shares) at Jun. 30, 2024				217,461,360
Beginning balance at Jun. 30, 2024	2,283,238		$ 251,070	$ 88,056	1,173,735	(78,809)	4,107,980		$ (3,258,794)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(45,152)						(45,152)
Other comprehensive loss, net of tax	28,470					28,470
Total comprehensive income (loss)	(16,682)
Cash dividends declared:
Common Stock	$ (23,529)						(23,529)
Preferred Stock		$ (4,648)						$ (4,648)
Issuance of common shares (in shares)	249,049			249,049
Issuance of common shares	$ 3,117			$ 50	3,078		(11)
Stock-based compensation expense	$ 8,374				8,374
Common stock repurchased (in shares)	(5,345,026)			(5,345,026)					(5,345,026)
Common stock repurchased	$ (115,338)								$ (115,338)
Shares repurchased related to employee stock-based compensation plans (in shares)	(34,916)			(34,916)					(34,916)
Shares repurchased related to employee stock-based compensation plans	$ (782)								$ (782)
Ending balance, shares issued (in shares) at Sep. 30, 2024			2,510,696	440,528,696
Ending balance (in shares) at Sep. 30, 2024	(228,200,000)								(228,198,229)
Ending balance (in shares) at Sep. 30, 2024				212,330,467
Ending balance at Sep. 30, 2024	$ 2,133,750		$ 251,070	$ 88,106	$ 1,185,187	$ (50,339)	$ 4,034,640		$ (3,374,914)