Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 387,838	$ 394,912
Accumulated Amortization	(218,572)	(197,456)
Net Intangible Assets	169,266	197,456
Loan servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	121,825	119,943
Accumulated Amortization	(99,513)	(96,136)
Net Intangible Assets	22,312	23,807
Core deposits
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	215,620	223,670
Accumulated Amortization	(106,201)	(92,486)
Net Intangible Assets	109,419	131,184
Other
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	50,393	51,299
Accumulated Amortization	(12,858)	(8,834)
Net Intangible Assets	$ 37,535	$ 42,465