XML 45 R34.htm IDEA: XBRL DOCUMENT v3.19.2
Summary of Significant Accounting Policies (Accumulated Other Comprehensive Loss) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Summary of Significant Accounting Policies [Abstract]    
Foreign currency translation $ (390,953) $ (394,306)
Unrealized gains on investments 3,157 3,345
Estimated tax loss on unrealized gains on investments (653) (616)
Accumulated other comprehensive loss $ (388,449) $ (391,577)