Earnings (Loss) per Share - Reconciliation of Shares Outstanding for Basic and Diluted Earnings per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Weighted average shares outstanding (in shares)	59,722	60,363	60,050	60,349
Less: Unallocated ESOP shares (in shares)	(353)	(418)	(369)	(435)
Unallocated incentive award shares (in shares)	(58)	(10)	(62)	(13)
Average basic shares outstanding (in shares)	59,311	59,935	59,619	59,901
Add: Effect of dilutive securities:
Incentive awards (in shares)	204	0	243	175
Average diluted shares outstanding (in shares)	59,515	59,935	59,862	60,076