Derivative Financial Instruments Derivative Financial Instruments - Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	$ 5	$ 0
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amounts of Assets presented in the Condensed Consolidated Balance Sheet	5	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	(5)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Net Amount	0	0
Offsetting of Derivative Liabilities
Gross Amounts of Recognized Liabilities	(4,594)	(9,611)
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amount	(4,594)	(9,611)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	5	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Net Amount	$ (4,589)	$ (9,611)