Revenue from Contracts with Customers - Schedule of Changes in Deferred Revenue, Inclusive of Both Current and Long-term (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
Movement in Deferred Revenue [Roll Forward]  
Beginning balance $ 8,875
Recognition of deferred revenue (5,471)
Deferral of revenue 3,929
Effect of foreign currency translation (77)
Ending balance $ 7,256