Derivative Financial Instruments - Fair Value of Derivative Financial Instruments and Their Classification on Balance Sheet (Details) - Interest rate contracts - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivatives designated as hedging instruments | Other Assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 0	$ 0
Derivatives designated as hedging instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	1,464	2,018
Derivatives not designated as hedging instruments | Other Assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	51,845	74,335
Derivatives not designated as hedging instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 51,845	$ 74,335