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Fair Value Measurements - Recurring Fair Value Measurements (Details) - Recurring Fair Value Measurements - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Fair Value Measurements [Line Items]    
Derivative asset   $ 2,324
Derivative liability $ 12,288 3,846
Fair value, Level 2    
Fair Value Measurements [Line Items]    
Derivative asset   2,324
Derivative liability $ 12,288 $ 3,846