Derivative Financial Instruments Derivative Financial Instruments - Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	$ 2,572	$ 6,855
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amounts of Assets presented in the Condensed Consolidated Balance Sheet	2,572	6,855
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	(2,572)	(3,966)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Net Amount	0	2,889
Offsetting of Derivative Liabilities
Gross Amounts of Recognized Liabilities	(17,466)	(6,094)
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amount	(17,466)	(6,094)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	2,572	3,966
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Net Amount	$ (14,894)	$ (2,128)

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