Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Financial Statements (Unaudited) - Consolidating Condensed Statement of Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Schedule of Condensed Statement of Comprehensive Income [Line Items]                      
Net income (loss) $ (43,073) $ (70,951) $ (22,877) $ (28,796) $ (28,693) $ (20,311) $ (29,888) $ (39,809) $ (165,697) $ (118,701) $ (230,814)
Other comprehensive income (loss), net of tax:                      
Currency translation difference on related borrowings                 (646) 643 (691)
Currency translation difference on foreign currency net investments                 (2,721) 2,689 (4,265)
Total other comprehensive income (loss), net of tax:                 (3,367) 3,332 (4,956)
Comprehensive income (loss) attributable to controlling interest                 (169,064) (115,369) (235,770)
Parent                      
Other comprehensive income (loss), net of tax:                      
Comprehensive income (loss) attributable to controlling interest                   (118,701)  
Guarantor                      
Other comprehensive income (loss), net of tax:                      
Comprehensive income (loss) attributable to controlling interest                   (1,655)  
Non-Guarantor                      
Other comprehensive income (loss), net of tax:                      
Comprehensive income (loss) attributable to controlling interest                   (35,765)  
Reportable Legal Entities | Parent                      
Schedule of Condensed Statement of Comprehensive Income [Line Items]                      
Net income (loss)                 (165,697) (118,701) (230,814)
Other comprehensive income (loss), net of tax:                      
Currency translation difference on related borrowings                 0 0 0
Currency translation difference on foreign currency net investments                 0 0 0
Total other comprehensive income (loss), net of tax:                 0 0 0
Comprehensive income (loss) attributable to controlling interest                 (165,697)   (230,814)
Reportable Legal Entities | Guarantor                      
Schedule of Condensed Statement of Comprehensive Income [Line Items]                      
Net income (loss)                 (54,508) (1,655) (48,922)
Other comprehensive income (loss), net of tax:                      
Currency translation difference on related borrowings                 0 0 0
Currency translation difference on foreign currency net investments                 0 0 0
Total other comprehensive income (loss), net of tax:                 0 0 0
Comprehensive income (loss) attributable to controlling interest                 (54,508)   (48,922)
Reportable Legal Entities | Non-Guarantor                      
Schedule of Condensed Statement of Comprehensive Income [Line Items]                      
Net income (loss)                 (33,040) (39,097) (45,547)
Other comprehensive income (loss), net of tax:                      
Currency translation difference on related borrowings                 (646) 643 (691)
Currency translation difference on foreign currency net investments                 (2,721) 2,689 (4,265)
Total other comprehensive income (loss), net of tax:                 (3,367) 3,332 (4,956)
Comprehensive income (loss) attributable to controlling interest                 (36,407)   (50,503)
Eliminations                      
Schedule of Condensed Statement of Comprehensive Income [Line Items]                      
Net income (loss)                 87,548 40,752 94,469
Other comprehensive income (loss), net of tax:                      
Currency translation difference on related borrowings                 0 0 0
Currency translation difference on foreign currency net investments                 0 0 0
Total other comprehensive income (loss), net of tax:                 0 0 0
Comprehensive income (loss) attributable to controlling interest                 $ 87,548 $ 40,752 $ 94,469