Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock, Common	Accumulated Other Comprehensive Income (Loss)	Preferred Stock
Common stock dividends declared per share (usd per share)	$ 0.25
Beginning Period Balance at Dec. 31, 2021	$ 3,999,630,000	$ 1,221,000	$ 3,013,399,000	$ 1,016,350,000	$ (97,308,000)	$ 65,968,000
Shares outstanding, beginning balance (shares) at Dec. 31, 2021		119,584,854
Stockholders' Equity Disclosure [Rollforward]
Net loss	120,128,000			120,128,000
Other comprehensive loss, net of tax	(442,443,000)					(442,443,000)
Restricted stock awarded and earned compensation, net of shares forfeited (shares)		109,466
Restricted stock awarded and earned stock compensation, net of shares forfeited	7,557,000	$ 1,000	7,556,000
Restricted stock surrendered (shares)		(92,554)
Restricted stock surrendered	(4,481,000)				(4,481,000)
Cash dividends paid	(29,796,000)		(29,796,000)
Shares outstanding, ending balance (shares) at Mar. 31, 2022		119,601,766
Ending Period Balance at Mar. 31, 2022	3,650,595,000	$ 1,222,000	2,991,159,000	1,136,478,000	(101,789,000)	(376,475,000)
Beginning Period Balance at Dec. 31, 2021	3,999,630,000	$ 1,221,000	3,013,399,000	1,016,350,000	(97,308,000)	65,968,000
Shares outstanding, beginning balance (shares) at Dec. 31, 2021		119,584,854
Stockholders' Equity Disclosure [Rollforward]
Net loss	242,488,000
Shares outstanding, ending balance (shares) at Jun. 30, 2022		120,288,024
Ending Period Balance at Jun. 30, 2022	$ 3,978,403,000	$ 1,230,000	2,970,647,000	1,258,838,000	(106,078,000)	(644,750,000)	$ 498,516,000
Common stock dividends declared per share (usd per share)	$ 0.25
Beginning Period Balance at Mar. 31, 2022	$ 3,650,595,000	$ 1,222,000	2,991,159,000	1,136,478,000	(101,789,000)	(376,475,000)
Shares outstanding, beginning balance (shares) at Mar. 31, 2022		119,601,766
Stockholders' Equity Disclosure [Rollforward]
Net loss	122,360,000			122,360,000
Other comprehensive loss, net of tax	(268,275,000)					(268,275,000)
Net proceeds from subordinated notes offering							498,516,000
Restricted stock awarded and earned compensation, net of shares forfeited (shares)		822,258
Restricted stock awarded and earned stock compensation, net of shares forfeited	9,698,000	$ 8,000	9,690,000
Restricted stock surrendered (shares)		(136,000)
Restricted stock surrendered	(4,289,000)				(4,289,000)
Cash dividends paid	(30,202,000)		(30,202,000)
Shares outstanding, ending balance (shares) at Jun. 30, 2022		120,288,024
Ending Period Balance at Jun. 30, 2022	$ 3,978,403,000	$ 1,230,000	2,970,647,000	1,258,838,000	(106,078,000)	(644,750,000)	498,516,000
Preferred stock dividends declared per share (usd per share)	$ 0.48
Common stock dividends declared per share (usd per share)	$ 0.25
Beginning Period Balance at Dec. 31, 2022	$ 3,950,531,000	$ 1,230,000	2,927,903,000	1,420,624,000	(106,839,000)	(790,903,000)	498,516,000
Shares outstanding, beginning balance (shares) at Dec. 31, 2022		120,222,057
Stockholders' Equity Disclosure [Rollforward]
Net loss	(1,195,424,000)			(1,195,424,000)
Other comprehensive loss, net of tax	54,843,000					54,843,000
Restricted stock awarded and earned compensation, net of shares forfeited (shares)		168,460
Restricted stock awarded and earned stock compensation, net of shares forfeited	4,983,000	$ 2,000	4,981,000
Restricted stock surrendered (shares)		(146,303)
Restricted stock surrendered	(4,053,000)				(4,053,000)
Dividends, Preferred Stock	(9,947,000)
Cash dividends paid	(29,456,000)		(29,456,000)
Shares outstanding, ending balance (shares) at Mar. 31, 2023		120,244,214
Ending Period Balance at Mar. 31, 2023	2,771,477,000	$ 1,232,000	2,903,428,000	215,253,000	(110,892,000)	(736,060,000)	498,516,000
Beginning Period Balance at Dec. 31, 2022	3,950,531,000	$ 1,230,000	2,927,903,000	1,420,624,000	(106,839,000)	(790,903,000)	498,516,000
Shares outstanding, beginning balance (shares) at Dec. 31, 2022		120,222,057
Stockholders' Equity Disclosure [Rollforward]
Net loss	(1,392,838,000)
Shares outstanding, ending balance (shares) at Jun. 30, 2023		120,169,012
Ending Period Balance at Jun. 30, 2023	$ 2,533,195,000	$ 1,233,000	2,911,268,000	7,892,000	(111,911,000)	(773,803,000)	498,516,000
Preferred stock dividends declared per share (usd per share)	$ 0.48
Common stock dividends declared per share (usd per share)	$ 0.01
Beginning Period Balance at Mar. 31, 2023	$ 2,771,477,000	$ 1,232,000	2,903,428,000	215,253,000	(110,892,000)	(736,060,000)	498,516,000
Shares outstanding, beginning balance (shares) at Mar. 31, 2023		120,244,214
Stockholders' Equity Disclosure [Rollforward]
Net loss	(197,414,000)			(197,414,000)
Other comprehensive loss, net of tax	(37,743,000)					(37,743,000)
Restricted stock awarded and earned compensation, net of shares forfeited (shares)		82,490
Restricted stock awarded and earned stock compensation, net of shares forfeited	8,934,000	$ 1,000	8,933,000
Restricted stock surrendered (shares)		(157,692)
Restricted stock surrendered	(1,019,000)				(1,019,000)
Dividends, Preferred Stock	(9,947,000)
Cash dividends paid	(1,093,000)		(1,093,000)
Shares outstanding, ending balance (shares) at Jun. 30, 2023		120,169,012
Ending Period Balance at Jun. 30, 2023	$ 2,533,195,000	$ 1,233,000	$ 2,911,268,000	$ 7,892,000	$ (111,911,000)	$ (773,803,000)	$ 498,516,000