Loans Receivable, Net - ACL Activity (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Allowance for credit losses
Balance at beginning of period	$ 206,041	$ 192,757	$ 192,757
Acquisitions		3
Provision for credit losses	6,154	9,091
Charge-offs	(3,897)	(4,295)
Recoveries	2,102	1,223
Balance at end of period	210,400	198,779	206,041
Residential real estate
Allowance for credit losses
Balance at beginning of period	25,181	22,325	22,325
Acquisitions		0
Provision for credit losses	1,352	1,837
Charge-offs	0	0	(40)
Recoveries	62	4
Balance at end of period	26,595	24,166	25,181
Commercial real estate
Allowance for credit losses
Balance at beginning of period	138,545	130,924	130,924
Acquisitions		3
Provision for credit losses	1,468	4,207
Charge-offs	0	0	(2,896)
Recoveries	356	19
Balance at end of period	140,369	135,153	138,545
Other commercial
Allowance for credit losses
Balance at beginning of period	24,400	21,194	21,194
Acquisitions		0
Provision for credit losses	1,722	2,293
Charge-offs	(1,536)	(1,932)	(5,778)
Recoveries	1,056	539
Balance at end of period	25,642	22,094	24,400
Home equity
Allowance for credit losses
Balance at beginning of period	11,402	11,766	11,766
Acquisitions		0
Provision for credit losses	(77)	(764)
Charge-offs	0	(25)	(131)
Recoveries	23	22
Balance at end of period	11,348	10,999	11,402
Other Consumer
Allowance for credit losses
Balance at beginning of period	6,513	6,548	6,548
Acquisitions		0
Provision for credit losses	1,689	1,518
Charge-offs	(2,361)	(2,338)	(9,781)
Recoveries	605	639
Balance at end of period	$ 6,446	$ 6,367	$ 6,513