Derivative Instruments - Schedule of Notional and Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	$ 15,373	$ 3,866
Derivative liabilities, fair value	14,021	21,107
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	1,162,796	812,634
Derivative assets, fair value	16,519	29,708
Derivative liabilities, notional amount	373,791	938,933
Derivative liabilities, fair value	5,849	14,974
Other Assets | Not Designated as Hedging Instrument | Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	190,200	222,933
Derivative assets, fair value	5,268	9,884
Other Assets | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	422,596	589,701
Derivative assets, fair value	7,592	19,824
Other Assets | Not Designated as Hedging Instrument | Forward Commitments
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	550,000	0
Derivative assets, fair value	3,659	0
Other Assets | Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	200,000	175,000
Derivative assets, fair value	11,615	3,866
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	190,200	222,933
Derivative liabilities, fair value	5,268	9,884
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	101,591	0
Derivative liabilities, fair value	423	0
Other Liabilities | Not Designated as Hedging Instrument | Forward Commitments
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	82,000	716,000
Derivative liabilities, fair value	158	5,090
Other Liabilities | Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	62,000	87,000
Derivative liabilities, fair value	3,544	5,924
Other Liabilities | Designated as Hedging Instrument | Interest Rate Swap | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	100,000	100,000
Derivative liabilities, fair value	$ 5,150	$ 209