Short and Long-Term Funding (Long-term Funding Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Nov. 30, 2014	Mar. 31, 2022
Long-Term Funding
FHLB advances prepayment		$ 400,000
FHLB Advances Prepayment - Prepayment Cost		$ 0
Fair Value of Pledged Securites to Securities Sold under Agreements to Repurchase		129.00%
Two Thousand Fourteen Subordinated Notes
Long-Term Funding
Debt Instrument, Issuance Date Month, Year	November 2014
Junior Subordinated Debentures Issued	$ 250,000
Debt Instrument, Term	10 years
Debt Instrument, Maturity Date Month, Year	January 2025
Debt Instrument Call Date Earliest Month Year	October 2024
Subordinated Borrowing, Interest Rate	4.25%