Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Basis of Presentation and Accounting Policies Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax $ (9,718)   $ (9,718)   $ (11,413)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax 28   28   76
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent     2,608    
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent     (74)    
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent     2,534    
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest     176    
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Noncontrolling Interest         20
Other Comprehensive Income (Loss), before Tax 1,620 $ (4,802) 2,730 $ (7,735)  
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent     (913)    
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent     26    
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent     (887)    
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Noncontrolling Interest     0    
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Noncontrolling Interest     0    
Other Comprehensive Income (Loss), Tax 533 (1,498) 887 (2,462)  
Accumulated other comprehensive loss, net of tax (9,690)   (9,690)   (11,337)
Other Comprehensive Income (Loss), Net of Tax 1,087 $ (3,304) 1,843 $ (5,273)  
Non-Controlling Interests In Subsidiaries [Member]          
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax (1,438)   (1,438)   (1,614)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax $ 3   3   $ (17)
Other Comprehensive Income (Loss), Net of Tax     $ 196