Loans Receivable, Net - ACL Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Allowance for credit losses
Balance at beginning of period	$ 182,283	$ 172,665
Provision for credit losses	6,260	4,344
Charge-offs	(3,293)	(2,694)
Recoveries	1,354	1,844
Balance at end of period	186,604	176,159
Residential real estate
Allowance for credit losses
Balance at beginning of period	19,683	16,458
Provision for credit losses	293	(249)
Charge-offs	(5)	0
Recoveries	3	18
Balance at end of period	19,974	16,227
Commercial real estate
Allowance for credit losses
Balance at beginning of period	125,816	117,901
Provision for credit losses	4,704	3,927
Charge-offs	(347)	0
Recoveries	80	344
Balance at end of period	130,253	122,172
Other commercial
Allowance for credit losses
Balance at beginning of period	21,454	24,703
Provision for credit losses	(121)	(1,003)
Charge-offs	(772)	(799)
Recoveries	603	981
Balance at end of period	21,164	23,882
Home equity
Allowance for credit losses
Balance at beginning of period	10,759	8,566
Provision for credit losses	(230)	559
Charge-offs	(4)	0
Recoveries	45	48
Balance at end of period	10,570	9,173
Other consumer
Allowance for credit losses
Balance at beginning of period	4,571	5,037
Provision for credit losses	1,614	1,110
Charge-offs	(2,165)	(1,895)
Recoveries	623	453
Balance at end of period	$ 4,643	$ 4,705