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Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
5 Months Ended 7 Months Ended 12 Months Ended
Dec. 31, 2015
Aug. 14, 2015
Dec. 31, 2016
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]        
Balance at December 31     $ 3,300  
Predecessor [Member]        
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]        
Balance at January 1 $ 3,689 $ 3,710   $ 7,203
Additions based on tax positions related to the current year       268
Additions for tax positions of prior years       232
Reductions for tax positions of prior years       (1,204)
Lapse of statutes of limitations       (1,180)
Settlements       (1,503)
Foreign currency impact   21   (106)
Balance at December 31   $ 3,689   $ 3,710
Successor [Member]        
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]        
Balance at January 1     3,921  
Additions for tax positions of prior years 301      
Lapse of statutes of limitations     (603)  
Foreign currency impact 69   (20)  
Balance at December 31 $ 3,921   $ 3,338