Derivative Financial Instruments - Gain (Loss) Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Asset Derivatives | Interest Rate Lock Commitments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments	$ (292)	$ (1,781)	$ (2,541)	$ (628)
Forward contracts | Liability Derivatives
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments	(738)	2,281	623	136
Interest Rate Lock Commitments | Liability Derivatives
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments	$ 0	$ 0	$ 0	$ 0