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Derivative Instruments - Schedule of Notional and Fair Value of Derivative Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Derivatives, Fair Value [Line Items]    
Derivative assets, fair value $ 3,866 $ 61
Derivative liabilities, fair value 21,107 9,974
Not Designated as Hedging Instrument    
Derivatives, Fair Value [Line Items]    
Derivative assets, notional amount 812,634 476,639
Derivative assets, fair value 29,708 8,498
Derivative liabilities, notional amount 938,933 592,440
Derivative liabilities, fair value 14,974 4,979
Other Assets | Not Designated as Hedging Instrument | Interest Rate Contract    
Derivatives, Fair Value [Line Items]    
Derivative assets, notional amount 222,933 219,664
Derivative assets, fair value 9,884 3,880
Other Assets | Not Designated as Hedging Instrument | Interest Rate Lock Commitments    
Derivatives, Fair Value [Line Items]    
Derivative assets, notional amount 589,701 214,975
Derivative assets, fair value 19,824 4,579
Other Assets | Not Designated as Hedging Instrument | Forward Commitments    
Derivatives, Fair Value [Line Items]    
Derivative assets, notional amount 0 42,000
Derivative assets, fair value 0 39
Other Assets | Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging    
Derivatives, Fair Value [Line Items]    
Derivative assets, notional amount 175,000 0
Derivative assets, fair value 3,866 0
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Contract    
Derivatives, Fair Value [Line Items]    
Derivative liabilities, notional amount 222,933 219,664
Derivative liabilities, fair value 9,884 3,880
Other Liabilities | Not Designated as Hedging Instrument | Interest Rate Lock Commitments    
Derivatives, Fair Value [Line Items]    
Derivative liabilities, notional amount 0 776
Derivative liabilities, fair value 0 3
Other Liabilities | Not Designated as Hedging Instrument | Forward Commitments    
Derivatives, Fair Value [Line Items]    
Derivative liabilities, notional amount 716,000 372,000
Derivative liabilities, fair value 5,090 1,096
Other Liabilities | Designated as Hedging Instrument | Interest Rate Swap | Cash Flow Hedging    
Derivatives, Fair Value [Line Items]    
Derivative liabilities, notional amount 87,000 92,000
Derivative liabilities, fair value 5,924 5,021
Other Liabilities | Designated as Hedging Instrument | Interest Rate Swap | Fair Value Hedging    
Derivatives, Fair Value [Line Items]    
Derivative liabilities, notional amount 100,000 0
Derivative liabilities, fair value $ 209 $ 0