Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 390,418	$ 388,599
Accumulated Amortization	(254,940)	(228,268)
Net Intangible Assets	135,478	160,331
Loan servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	124,405	122,586
Accumulated Amortization	(103,929)	(100,636)
Net Intangible Assets	20,476	21,950
Core deposits
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	215,620	215,620
Accumulated Amortization	(132,060)	(113,183)
Net Intangible Assets	83,560	102,437
Other
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	50,393	50,393
Accumulated Amortization	(18,951)	(14,449)
Net Intangible Assets	$ 31,442	$ 35,944