Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policies Accumulated Other Comprehensive Income (Details)

v3.8.0.1
Basis of Presentation and Accounting Policies Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax $ 96   $ (545)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent 644    
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent 644    
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Noncontrolling Interest 0    
Other Comprehensive Income (Loss), before Tax 644 $ 850  
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent (3)    
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent (3)    
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Noncontrolling Interest 0    
Other Comprehensive Income (Loss), Tax 3 264  
Accumulated other comprehensive loss, net of tax 96   (545)
Other Comprehensive Income (Loss), Net of Tax 641 $ 586  
Non-Controlling Interests In Subsidiaries [Member]      
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax (1,460)   $ (1,460)
Other Comprehensive Income (Loss), Net of Tax $ 0