Fair Value of Financial Instruments - Schedule of Significant Inputs used in the Valuation of Level 3 Assets (Details) $ in Thousands	Mar. 31, 2021 USD ($) Rate	Dec. 31, 2020 USD ($) Rate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Derivative assets	$ 12,688	$ 11,529
Mortgage servicing rights	20,894	14,758
Fair Value, Inputs, Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Total assets	29,178	23,965
Contingent consideration payable	200	200
Fair Value, Inputs, Level 3 | Interest rate lock commitments
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Derivative assets	8,284	9,207
Fair Value, Inputs, Level 3 | Residential Mortgage
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Mortgage servicing rights	$ 20,894	$ 14,758
Pull through rate | Fair Value, Inputs, Level 3 | Interest rate lock commitments | Internal Model | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Pull through rate | Rate	0.50	0.50
Pull through rate | Fair Value, Inputs, Level 3 | Interest rate lock commitments | Internal Model | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Pull through rate | Rate	0.95	0.95
Pull through rate | Fair Value, Inputs, Level 3 | Interest rate lock commitments | Internal Model | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Pull through rate | Rate	0.62	0.68
Discount rate | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input | Rate	0.10	0.10
Discount rate | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input | Rate	0.13	0.13
Discount rate | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input | Rate	0.11	0.11
Cost to service | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input	75	75
Cost to service | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input	90	90
Cost to service | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input	82	82
Prepayment speed | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input | Rate	0.07	0.08
Prepayment speed | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input | Rate	0.56	0.60
Prepayment speed | Fair Value, Inputs, Level 3 | Residential Mortgage | External model | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Servicing asset, measurement input | Rate	0.16	0.22
Contingent Consideration, Possible Earnout Amount, Cash | Fair Value, Inputs, Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent consideration payable	$ 200	$ 200
Contingent Consideration, Possible Earnout Amount, Cash | Forecast Cash EBITDA | Fair Value, Inputs, Level 3 | Cash Flow Model | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent consideration payable	20,000	20,000
Contingent Consideration, Possible Earnout Amount, Cash | Forecast Cash EBITDA | Fair Value, Inputs, Level 3 | Cash Flow Model | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent consideration payable	30,000	30,000
Contingent Consideration, Possible Earnout Amount, Cash | Assumed Claim Liabilities | Fair Value, Inputs, Level 3 | Actuarial Analysis | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Contingent consideration payable	$ 55,000	$ 55,000