XML 44 R32.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Significant Accounting Policies - (Gain) Loss on Foreign Currency Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Accounting Policies [Abstract]        
Total loss on foreign currency transactions $ (18,624) $ 20,199 $ 3,161 $ 16,035