Derivative and Hedging Activities Cumulative Basis Adjustment for Fair Value Hedges (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Forward commitments on residential mortgage loans
Balance Sheet Recording of Fair Value Hedge [Line Items]
Derivatives (trading liabilities)	$ (835,297)
Fair Value Hedging [Member]
Balance Sheet Recording of Fair Value Hedge [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	14,703
Long-Term Debt [Member] | Forward commitments on residential mortgage loans
Balance Sheet Recording of Fair Value Hedge [Line Items]
Derivatives (trading liabilities)	(249,611)
Long-Term Debt [Member] | Fair Value Hedging [Member]
Balance Sheet Recording of Fair Value Hedge [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	389
Federal Home Loan Bank Advances [Member] | Forward commitments on residential mortgage loans
Balance Sheet Recording of Fair Value Hedge [Line Items]
Derivatives (trading liabilities)	(585,686)
Federal Home Loan Bank Advances [Member] | Fair Value Hedging [Member]
Balance Sheet Recording of Fair Value Hedge [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	14,314
Designated as Hedging Instrument
Balance Sheet Recording of Fair Value Hedge [Line Items]
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	$ 2,000