Borrowed Funds - Schedule of Pledged Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Loans	$ 9,961,117	$ 10,136,721
Debt securities	721,484	753,892
Total assets	13,321,755	13,538,253
FHLB and FRB
Debt Instrument [Line Items]
Loans	7,371,979	7,255,671
Debt securities	1,164,150	1,051,558
Total assets	8,536,129	8,307,229
Repurchase agreements
Debt Instrument [Line Items]
Loans	0	0
Debt securities	91,946	103,416
Total assets	91,946	103,416
Total pledged assets
Debt Instrument [Line Items]
Loans	7,371,979	7,255,671
Debt securities	1,256,096	1,154,974
Total assets	$ 8,628,075	$ 8,410,645