XML 65 R54.htm IDEA: XBRL DOCUMENT v3.10.0.1
Revenue and Related Contract Costs and Contract Liabilities - Summary of Changes in Contract Costs (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2018
USD ($)
Revenue From Contract With Customer [Abstract]  
Balance at January 1, 2018 $ 16,878
Additions 32,720
Expenses (22,514)
Foreign exchange translation adjustment (412)
Balance at June 30, 2018 $ 26,672