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) Income	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		$ (33,769)					(33,769)
Repurchased common stock (in shares)		(7,083,090)			(7,083,090)
Repurchased common stock		$ (141,821)			$ (71)	(141,750)
Issuance of restricted stock awards (in shares)					31,559
Issuance of restricted stock awards		0			$ 1	(1)
Share-based compensation		4,531				4,531
Net income (loss)		102,688					102,688
Other comprehensive income (loss), net of tax		(604,467)								(604,467)
ESOP shares committed to be released		4,980				2,474					2,506
Ending balance (in shares) at Jun. 30, 2022					179,253,801
Ending balance at Jun. 30, 2022		2,718,396			$ 1,793	1,700,495	1,817,474			(661,163)	(140,203)
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 Mar. 31, 2022					183,438,711
Beginning Balance at Mar. 31, 2022		$ 3,008,392			$ 1,834	1,777,670	1,782,997			(412,654)	(141,455)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends to common shareholders		$ (16,695)					(16,695)
Repurchased common stock (in shares)		(4,216,469)			(4,216,469)
Repurchased common stock		$ (81,226)			$ (42)	(81,184)
Issuance of restricted stock awards (in shares)					31,559
Issuance of restricted stock awards		0			$ 1	(1)
Share-based compensation		2,908				2,908
Net income (loss)		51,172					51,172
Other comprehensive income (loss), net of tax		(248,509)								(248,509)
ESOP shares committed to be released		2,354				1,102					1,252
Ending balance (in shares) at Jun. 30, 2022					179,253,801
Ending balance at Jun. 30, 2022		$ 2,718,396			$ 1,793	1,700,495	1,817,474			(661,163)	(140,203)
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		$ (32,688)					(32,688)
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		7,712				7,712
Net income (loss)		(145,439)					(145,439)
Other comprehensive income (loss), net of tax		222,210								222,210
ESOP shares committed to be released		$ 3,529				1,065					2,464
Ending balance (in shares) at Jun. 30, 2023		176,376,675			176,376,675
Ending balance at Jun. 30, 2023		$ 2,526,772			$ 1,766	1,656,750	1,704,470			(700,982)	(135,232)
Beginning balance (in shares) at Mar. 31, 2023					176,328,426
Beginning Balance at Mar. 31, 2023		2,579,123			$ 1,764	1,651,524	1,672,169			(609,864)	(136,470)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends to common shareholders		(16,356)					(16,356)
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)					429
Issuance of common stock under share-based compensation arrangements		(1)			$ 1	(2)
Share-based compensation		4,668				4,668
Net income (loss)		48,657					48,657
Other comprehensive income (loss), net of tax		(91,118)								(91,118)
ESOP shares committed to be released		$ 1,799				561					1,238
Ending balance (in shares) at Jun. 30, 2023		176,376,675			176,376,675
Ending balance at Jun. 30, 2023		$ 2,526,772			$ 1,766	$ 1,656,750	$ 1,704,470			$ (700,982)	$ (135,232)

[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 six months ended June 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.