Quarterly report pursuant to Section 13 or 15(d)

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Statement of Comprehensive Income (Loss) (Details)

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Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Statement of Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Schedule of Condensed Statement of Comprehensive Income [Line Items]        
Net loss $ (39,822) $ (13,934) $ (135,657) $ (10,156)
Currency translation difference on related borrowings (307) 647 195 (1,023)
Currency translation difference on foreign currency net investments (2,228) 1,723 (3,766) 874
Total other comprehensive income (loss), net of tax: (2,535) 2,370 (3,571) (149)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent (42,357) (11,659) (139,228) (10,794)
Comprehensive loss attributable to noncontrolling interest 0 (95) 0 (489)
Comprehensive loss (42,357) (11,564) (139,228) (10,305)
Parent [Member]        
Schedule of Condensed Statement of Comprehensive Income [Line Items]        
Net loss (39,824) (14,029) (135,657) (10,807)
Currency translation difference on related borrowings 0 0 0 0
Currency translation difference on foreign currency net investments 0 0 0 0
Total other comprehensive income (loss), net of tax: 0 0 0 0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent (39,824) (14,029) (135,657) (10,807)
Comprehensive loss attributable to noncontrolling interest   0   0
Comprehensive loss   (14,029)   (10,807)
Guarantor [Member]        
Schedule of Condensed Statement of Comprehensive Income [Line Items]        
Net loss (16,502) (7,187) (30,816) (4,868)
Currency translation difference on related borrowings 0 0 0 0
Currency translation difference on foreign currency net investments 0 0 0 0
Total other comprehensive income (loss), net of tax: 0 0 0 0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent (16,502) (7,187) (30,816) (4,868)
Comprehensive loss attributable to noncontrolling interest   0   0
Comprehensive loss   (7,187)   (4,868)
Non-Guarantor [Member]        
Schedule of Condensed Statement of Comprehensive Income [Line Items]        
Net loss (8,064) (1,110) (9,977) 6,116
Currency translation difference on related borrowings (307) 647 195 (1,023)
Currency translation difference on foreign currency net investments (2,228) 1,723 (3,766) 874
Total other comprehensive income (loss), net of tax: (2,535) 2,370 (3,571) (149)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent (10,599) 1,165 (13,548) 5,478
Comprehensive loss attributable to noncontrolling interest   (95)   (489)
Comprehensive loss   1,260   5,967
Consolidation, Eliminations [Member]        
Schedule of Condensed Statement of Comprehensive Income [Line Items]        
Net loss 24,568 8,392 40,793 (597)
Currency translation difference on related borrowings 0 0 0 0
Currency translation difference on foreign currency net investments 0 0 0 0
Total other comprehensive income (loss), net of tax: 0 0 0 0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent $ 24,568 8,392 $ 40,793 (597)
Comprehensive loss attributable to noncontrolling interest   0   0
Comprehensive loss   $ 8,392   $ (597)