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Derivative Financial Instruments - Change in Fair Value of Derivatives (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Derivative [Line Items]        
Change in fair value of derivatives and other $ 348 $ (6) $ 775 $ (1,742)
Unrealized cash flow hedge gains (losses) (468) (2,279) 1,807 (9,768)
Total change in fair value of interest rate derivatives (120) (2,285) 2,582 (11,510)
Interest rate swaps        
Derivative [Line Items]        
Total change in fair value of interest rate derivatives (86) (2,147) 2,375 (11,230)
Interest rate caps        
Derivative [Line Items]        
Total change in fair value of interest rate derivatives $ (34) $ (138) $ 207 $ (280)