Derivative Financial Instruments - Notional Amounts and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Asset Derivatives
Notional Amount	$ 56,256	$ 156,271
Fair Value	910	1,968
Derivative Liability [Abstract]
Notional Amount	840,646	625,491
Fair Value	(37,939)	(11,087)
IRLCs
Derivative Liability [Abstract]
Fair Value	910	389
Forward contracts
Derivative Liability [Abstract]
Notional Amount	115,000	32,500
Fair Value	(153)	(360)
Derivatives designated as hedging instruments \| Interest rate swaps assets
Asset Derivatives
Notional Amount	0	91,135
Fair Value	0	986
Derivative Liability [Abstract]
Notional Amount	427,446	344,791
Fair Value	(21,551)	(6,011)
Notional Amount	515,646	524,126
Derivatives designated as hedging instruments \| Interest rate swaps associated with securities available-for-sale
Derivative Liability [Abstract]
Notional Amount	88,200	38,200
Fair Value	(2,806)	(358)
Derivatives not designated as hedging instruments \| IRLCs
Asset Derivatives
Notional Amount	56,256	15,136
Fair Value	910	389
Securities available-for-sale \| Derivatives designated as hedging instruments \| Interest rate swaps assets
Asset Derivatives
Notional Amount	0	50,000
Fair Value	0	593
Derivative Liability [Abstract]
Notional Amount	88,200	88,200
Liability \| Derivatives designated as hedging instruments \| Interest rate swaps assets
Derivative Liability [Abstract]
Notional Amount	210,000	210,000
Fair Value	$ (13,429)	$ (4,358)

Nominal or face amount used to calculate payments on the derivative asset.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Nominal or face amount used to calculate payments on the derivative liability.

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Nominal or face amount used to calculate payment on derivative.

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