Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 389,149	$ 388,599
Accumulated Amortization	(237,680)	(228,268)
Net Intangible Assets	151,469	160,331
Loan servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	123,136	122,586
Accumulated Amortization	(101,830)	(100,636)
Net Intangible Assets	21,306	21,950
Core deposits
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	215,620	215,620
Accumulated Amortization	(119,832)	(113,183)
Net Intangible Assets	95,788	102,437
Other
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	50,393	50,393
Accumulated Amortization	(16,018)	(14,449)
Net Intangible Assets	$ 34,375	$ 35,944