Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Board Authorized Purchase Program [Member]	Series E Preferred Stock	Series F Preferred Stock	Performance/Service Based RSAs, RSA,	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common	Treasury Stock, Common Board Authorized Purchase Program [Member]	Treasury Stock, Common Performance/Service Based RSAs, RSA,
Beginning balance at Dec. 31, 2022	$ 4,015,490					$ 194,112	$ 1,752	$ 1,712,733	$ 2,904,882	$ (272,799)	$ (525,190)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	103,360								103,360
Other Comprehensive Income (Loss), Net of Tax	39,211									39,211
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	142,571
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	1,766							(12,612)	0		14,379
Treasury Stock, Value, Acquired, Cost Method	(5,362)												$ (5,362)
Dividends [Abstract]
Dividends, Common Stock, Cash	(32,013)								(32,013)
Dividends, Preferred Stock, Cash	(2,875)								(2,875)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	6,086							6,086
Ending balance at Mar. 31, 2023	4,125,663					194,112	1,752	1,706,206	2,973,354	(233,588)	(516,173)
Beginning balance at Dec. 31, 2022	4,015,490					194,112	1,752	1,712,733	2,904,882	(272,799)	(525,190)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	273,762								273,762
Other Comprehensive Income (Loss), Net of Tax	(66,340)									(66,340)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	207,422
Ending balance at Sep. 30, 2023	4,127,643					194,112	1,752	1,711,454	3,074,014	(339,140)	(514,549)
Beginning balance at Mar. 31, 2023	4,125,663					194,112	1,752	1,706,206	2,973,354	(233,588)	(516,173)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	87,154								87,154
Other Comprehensive Income (Loss), Net of Tax	(58,054)									(58,054)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	29,100
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	93							(1,677)	0		1,770
Treasury Stock, Value, Acquired, Cost Method	(884)												(884)
Dividends [Abstract]
Dividends, Common Stock, Cash	(31,996)								(31,996)
Dividends, Preferred Stock, Cash	(2,875)								(2,875)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	3,773							3,773
Ending balance at Jun. 30, 2023	4,122,874					194,112	1,752	1,708,303	3,025,637	(291,642)	(515,287)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	83,248								83,248
Other Comprehensive Income (Loss), Net of Tax	(47,497)									(47,497)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	35,751
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	503							(497)	0		999
Treasury Stock, Value, Acquired, Cost Method					$ (261)								(261)
Dividends [Abstract]
Dividends, Common Stock, Cash	(31,996)								(31,996)
Dividends, Preferred Stock, Cash	(2,875)								(2,875)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	3,648							3,648
Preferred Stock, Dividends, Per Share, Cash Paid			$ 0.3671875	$ 0.3515625
Ending balance at Sep. 30, 2023	4,127,643					194,112	1,752	1,711,454	3,074,014	(339,140)	(514,549)
Beginning balance at Dec. 31, 2023	4,173,973					194,112	1,752	1,714,822	2,946,805	(171,096)	(512,421)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	81,169								81,169
Other Comprehensive Income (Loss), Net of Tax	(38,785)									(38,785)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	42,384
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	3,910							(13,839)			17,749
Treasury Stock, Value, Acquired, Cost Method		$ (18,289)			(4,572)							$ (18,289)	(4,572)
Dividends [Abstract]
Dividends, Common Stock, Cash	(33,527)								(33,527)
Dividends, Preferred Stock, Cash	(2,875)								(2,875)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	7,669							7,669
Ending balance at Mar. 31, 2024	4,168,673					194,112	1,752	1,708,652	2,991,571	(209,881)	(517,533)
Beginning balance at Dec. 31, 2023	4,173,973					194,112	1,752	1,714,822	2,946,805	(171,096)	(512,421)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	284,760								284,760
Other Comprehensive Income (Loss), Net of Tax	59,348									59,348
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	344,108
Ending balance at Sep. 30, 2024	4,413,236					194,112	1,752	1,714,055	3,122,307	(111,748)	(507,241)
Beginning balance at Mar. 31, 2024	4,168,673					194,112	1,752	1,708,652	2,991,571	(209,881)	(517,533)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	115,573								115,573
Other Comprehensive Income (Loss), Net of Tax	(9,333)									(9,333)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	106,241
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	526							(1,704)			2,230
Treasury Stock, Value, Acquired, Cost Method					(1,088)								(1,088)
Dividends [Abstract]
Dividends, Common Stock, Cash	(33,507)								(33,507)
Dividends, Preferred Stock, Cash	(2,875)								(2,875)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	4,368							4,368
Ending balance at Jun. 30, 2024	4,242,337					194,112	1,752	1,711,316	3,070,762	(219,214)	(516,391)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income (Loss) Attributable to Parent	88,018								88,018
Other Comprehensive Income (Loss), Net of Tax	107,466									107,466
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	195,483
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	8,845							(652)			9,498
Treasury Stock, Value, Acquired, Cost Method					$ (347)								$ (347)
Dividends [Abstract]
Dividends, Common Stock, Cash	(33,599)								(33,599)
Dividends, Preferred Stock, Cash	(2,875)								(2,875)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	3,392							3,392
Preferred Stock, Dividends, Per Share, Cash Paid			$ 0.3671875	$ 0.3515625
Ending balance at Sep. 30, 2024	$ 4,413,236					$ 194,112	$ 1,752	$ 1,714,055	$ 3,122,307	$ (111,748)	$ (507,241)