UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands		Total	Cumulative effect accounting adjustment		Common Stock	Additional Paid in Capital	Retained Earnings	Retained Earnings Cumulative effect accounting adjustment		Accumulated Other Comprehensive Loss	Unallocated Common Stock Held by ESOP
Beginning balance (in shares) at Dec. 31, 2021					186,305,332
Beginning Balance at Dec. 31, 2021		$ 3,406,352	$ (20,098)	[1]	$ 1,863	$ 1,835,241	$ 1,768,653	$ (20,098)	[1]	$ (56,696)	$ (142,709)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends to common shareholders		$ (50,263)					(50,263)
Repurchased common stock (in shares)		(8,564,338)			(8,564,338)
Repurchased common stock		$ (170,771)			$ (86)	(170,685)
Issuance of restricted stock awards (in shares)					31,559
Issuance of restricted stock awards		0			$ 1	(1)
Share-based compensation		8,092				8,092
Net income (loss)		157,465					157,465
Other comprehensive income (loss), net of tax		(922,122)								(922,122)
ESOP shares committed to be released		7,508				3,749					3,759
Ending balance (in shares) at Sep. 30, 2022					177,772,553
Ending balance at Sep. 30, 2022		2,416,163			$ 1,778	1,676,396	1,855,757			(978,818)	(138,950)
Beginning balance (in shares) at Dec. 31, 2021					186,305,332
Beginning Balance at Dec. 31, 2021		$ 3,406,352	(20,098)	[1]	$ 1,863	1,835,241	1,768,653	(20,098)	[1]	(56,696)	(142,709)
Ending balance (in shares) at Dec. 31, 2022		176,172,073			176,172,073
Ending balance at Dec. 31, 2022		$ 2,471,790	822	[2]	$ 1,762	1,649,141	1,881,775	822	[2]	(923,192)	(137,696)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	[2]	Accounting Standards Update 2022-02
Beginning balance (in shares) at Jun. 30, 2022					179,253,801
Beginning Balance at Jun. 30, 2022		$ 2,718,396			$ 1,793	1,700,495	1,817,474			(661,163)	(140,203)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends to common shareholders		$ (16,494)					(16,494)
Repurchased common stock (in shares)		(1,481,248)			(1,481,248)
Repurchased common stock		$ (28,950)			$ (15)	(28,935)
Share-based compensation		3,561				3,561
Net income (loss)		54,777					54,777
Other comprehensive income (loss), net of tax		(317,655)								(317,655)
ESOP shares committed to be released		2,528				1,275					1,253
Ending balance (in shares) at Sep. 30, 2022					177,772,553
Ending balance at Sep. 30, 2022		$ 2,416,163			$ 1,778	1,676,396	1,855,757			(978,818)	(138,950)
Beginning balance (in shares) at Dec. 31, 2022		176,172,073			176,172,073
Beginning Balance at Dec. 31, 2022		$ 2,471,790	$ 822	[2]	$ 1,762	1,649,141	1,881,775	$ 822	[2]	(923,192)	(137,696)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends to common shareholders		$ (49,046)					(49,046)
Repurchased common stock (in shares)		0
Issuance of restricted stock awards (in shares)					47,820
Issuance of restricted stock awards		$ 0			$ 1	(1)
Issuance of common stock under share-based compensation arrangements (in shares)	[3]				156,782
Issuance of common stock under share-based compensation arrangements	[3]	(1,164)			$ 3	(1,167)
Share-based compensation		11,387				11,387
Net income (loss)		(86,326)					(86,326)
Other comprehensive income (loss), net of tax		93,610								93,610
ESOP shares committed to be released		$ 5,480				1,776					3,704
Ending balance (in shares) at Sep. 30, 2023		176,376,675			176,376,675
Ending balance at Sep. 30, 2023		$ 2,446,553			$ 1,766	1,661,136	1,747,225			(829,582)	(133,992)
Beginning balance (in shares) at Jun. 30, 2023					176,376,675
Beginning Balance at Jun. 30, 2023		2,526,772			$ 1,766	1,656,750	1,704,470			(700,982)	(135,232)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends to common shareholders		(16,358)					(16,358)
Share-based compensation		3,675				3,675
Net income (loss)		59,113					59,113
Other comprehensive income (loss), net of tax		(128,600)								(128,600)
ESOP shares committed to be released		$ 1,951				711					1,240
Ending balance (in shares) at Sep. 30, 2023		176,376,675			176,376,675
Ending balance at Sep. 30, 2023		$ 2,446,553			$ 1,766	$ 1,661,136	$ 1,747,225			$ (829,582)	$ (133,992)

[1] Represents gross transition adjustment amount of $28.0 million, net of taxes of $7.9 million, to reflect the cumulative impact on retained earnings pursuant to the Company’s adoption of Accounting Standards Update 2016-13. Refer to Note 4, “Loans and Allowance for Credit Losses” within the Notes to the Unaudited Consolidated Financial Statements included in Part I, Item 1 in this Quarterly Report on Form 10-Q for additional discussion.

[2] Represents gross transition adjustment amount of $1.1 million, net of taxes of $0.3 million, to reflect the cumulative impact on retained earnings pursuant to the Company’s adoption of Accounting Standards Update 2022-02. Refer to Note 4, “Loans and Allowance for Credit Losses” within the Notes to the Unaudited Consolidated Financial Statements included in Part I, Item 1 in this Quarterly Report on Form 10-Q for additional discussion.

[3] Represents shares issued, net of employee tax withheld, during the nine months ended September 30, 2023 upon the vesting of restricted stock units. Refer to Note 11, “Share-Based Compensation” within the Notes to the Unaudited Consolidated Financial Statements included in Part I, Item 1 in this Quarterly Report on Form 10-Q for additional discussion.