Derivative Instruments - Schedule of Notional and Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	$ 30,352	$ 3,866
Derivative liabilities, fair value	18,501	21,107
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	1,677,543	812,634
Derivative assets, fair value	32,753	29,708
Derivative liabilities, notional amount	343,385	938,933
Derivative liabilities, fair value	7,537	14,974
Other Assets | Not Designated as Hedging Instrument | Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	232,095	222,933
Derivative assets, fair value	7,111	9,884
Other Assets | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	598,448	589,701
Derivative assets, fair value	11,875	19,824
Other Assets | Not Designated as Hedging Instrument | Forward Commitments
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	847,000	0
Derivative assets, fair value	13,767	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	16,474	3,866
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	232,095	222,933
Derivative liabilities, fair value	7,111	9,884
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	51,290	0
Derivative liabilities, fair value	373	0
Other Liabilities | Not Designated as Hedging Instrument | Forward Commitments
Derivatives, Fair Value [Line Items]
Derivative liabilities, notional amount	60,000	716,000
Derivative liabilities, fair value	53	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	3,798	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	$ 7,650	$ 209