Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Additional Information (Details)

v3.19.2
Fair Value of Financial Instruments - Additional Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Related receivables $ 46,721 $ 37,041
Forward Contracts    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Related receivables $ 431 $ 472