Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 392,672	$ 391,974
Accumulated Amortization	(271,332)	(263,313)
Net Intangible Assets	121,340	128,661
Loan servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	126,659	125,961
Accumulated Amortization	(105,739)	(104,833)
Net Intangible Assets	20,920	21,128
Core deposits
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	215,620	215,620
Accumulated Amortization	(143,767)	(138,080)
Net Intangible Assets	71,853	77,540
Other
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	50,393	50,393
Accumulated Amortization	(21,826)	(20,400)
Net Intangible Assets	$ 28,567	$ 29,993