Annual report pursuant to Section 13 and 15(d)

Condensed Consolidating Financial Information - Comprehensive Income (Loss) (Details)

v3.10.0.1
Condensed Consolidating Financial Information - 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
Condensed Financial Statements, Captions [Line Items]                      
Net income (loss) $ 134,001 $ 95,150 $ 111,319 $ 90,090 $ 156,526 $ 18,235 $ 105,936 $ 154,455 $ 430,560 $ 435,152 $ (979,709)
Foreign currency translation adjustment [1]                 (15,487) 12,519 2,119
Other comprehensive (loss) income                 (15,487) 12,519 2,119
Comprehensive income (loss)                 415,073 447,671 (977,590)
Eliminations                      
Condensed Financial Statements, Captions [Line Items]                      
Net income (loss)                 (485,249) (228,143) 22,154
Foreign currency translation adjustment                 15,487 (12,519) (2,119)
Other comprehensive (loss) income                 15,487 (12,519) (2,119)
Comprehensive income (loss)                 (469,762) (240,662) 20,035
Parent                      
Condensed Financial Statements, Captions [Line Items]                      
Net income (loss)                 430,560 435,152 (979,709)
Foreign currency translation adjustment                 (15,487) 12,519 2,119
Other comprehensive (loss) income                 (15,487) 12,519 2,119
Comprehensive income (loss)                 415,073 447,671 (977,590)
Guarantors                      
Condensed Financial Statements, Captions [Line Items]                      
Net income (loss)                 485,762 230,335 2,999
Foreign currency translation adjustment                 (297) 182 778
Other comprehensive (loss) income                 (297) 182 778
Comprehensive income (loss)                 485,465 230,517 3,777
Non-Guarantor                      
Condensed Financial Statements, Captions [Line Items]                      
Net income (loss)                 (513) (2,192) (25,153)
Foreign currency translation adjustment                 (15,190) 12,337 1,341
Other comprehensive (loss) income                 (15,190) 12,337 1,341
Comprehensive income (loss)                 $ (15,703) $ 10,145 $ (23,812)
[1] Net of $1.3 million in taxes for the year ended December 31, 2016. No taxes were recorded for the years ended December 31, 2018 and December 31, 2017.