Goodwill and Intangible Assets, Mortgage Servicing Rights Roll-Forward (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Servicing Assets at Fair Value [Line Items]
Servicing Asset at Fair Value, Amount, Beginning Balance		$ 84,390	$ 77,351
Servicing Asset at Fair Value, Additions		6,707	3,564	$ 7,279
Servicing Asset at Fair Value, Disposals		(8,060)	(7,185)
Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions		0	8,881
Servicing Asset at Fair Value, Other Changes in Fair Value		4,646	1,778
Servicing Asset at Fair Value, Amount, Ending Balance	$ 84,390	87,683	84,390	77,351
Portfolio Of Residential Mortgage Loans Serviced For Others	$ 7,364,492	$ 6,285,018	$ 7,364,492
Mortgage Servicing Rights Net To Servicing Portfolio	1.15%	1.40%	1.15%
Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale		$ 663,038	$ 1,058,305	$ 18
Residential Mortgage [Member]
Servicing Assets at Fair Value [Line Items]
Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale	$ 969,000
Proceeds from Sale, Loan, Held-for-Sale	$ 844,000