Derivatives - Derivative Financial Instruments (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Interest Rate Swap | Subordinated debt
Derivatives, Fair Value [Line Items]
Notional Amount	$ 30,000,000
Not designated as hedging
Derivatives, Fair Value [Line Items]
Notional Amount	1,636,349,000	$ 2,696,444,000
Asset	36,326,000	27,384,000
Liability	(29,683,000)	(20,215,000)
Not designated as hedging | Interest rate contracts
Derivatives, Fair Value [Line Items]
Notional Amount	533,633,000	600,048,000
Asset	29,701,000	19,265,000
Liability	(29,683,000)	(19,138,000)
Not designated as hedging | Forward commitments
Derivatives, Fair Value [Line Items]
Notional Amount	492,000,000	1,180,000,000
Asset	1,915,000	0
Liability	0	(1,077,000)
Not designated as hedging | Interest rate-lock commitments
Derivatives, Fair Value [Line Items]
Notional Amount	292,716,000	487,396,000
Asset	3,758,000	7,197,000
Liability	0	0
Not designated as hedging | Futures contracts
Derivatives, Fair Value [Line Items]
Notional Amount	318,000,000	429,000,000
Asset	952,000	922,000
Liability	0	0
Designated as hedging | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Notional Amount	300,000,000
Designated as hedging | Interest Rate Swap | Subordinated debt
Derivatives, Fair Value [Line Items]
Notional Amount	30,000,000
Designated as hedging | Interest Rate Swap | Other assets | Subordinated debt
Derivatives, Fair Value [Line Items]
Asset	$ 644,000
Designated as hedging | Interest Rate Swap | Accrued expenses and other liabilities | Subordinated debt
Derivatives, Fair Value [Line Items]
Liability		$ (785,000)