Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Financial Information (Condensed Consolidating Statements of Cash Flows (Details))

v3.8.0.1
Condensed Consolidating Financial Information (Condensed Consolidating Statements of Cash Flows (Details)) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities $ 491,733 $ 245,275
Net cash (used in) provided by investing activities (1,996,480) (420,257)
Net cash provided by (used in) financing activities 354,143 426,284
Net (decrease) increase in cash and cash equivalents (1,150,604) 251,302
Cash and cash equivalents at beginning of period 1,275,875 112,974
Cash and cash equivalents at end of period 125,271 364,276
Reportable Legal Entities | Parent    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 310,624 244,758
Net cash (used in) provided by investing activities (1,849,554) (420,257)
Net cash provided by (used in) financing activities 354,143 426,284
Net (decrease) increase in cash and cash equivalents (1,184,787) 250,785
Cash and cash equivalents at beginning of period 1,273,882 112,494
Cash and cash equivalents at end of period 89,095 363,279
Reportable Legal Entities | Guarantors    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 181,108 517
Net cash (used in) provided by investing activities (1,554,063) (26,500)
Net cash provided by (used in) financing activities 1,407,137 26,500
Net (decrease) increase in cash and cash equivalents 34,182 517
Cash and cash equivalents at beginning of period 1,993 479
Cash and cash equivalents at end of period 36,175 996
Reportable Legal Entities | Non-Guarantor    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities (1) 3,998
Net cash (used in) provided by investing activities (1,843) (18,510)
Net cash provided by (used in) financing activities 1,845 14,512
Net (decrease) increase in cash and cash equivalents 1 0
Cash and cash equivalents at beginning of period 0 1
Cash and cash equivalents at end of period 1 1
Eliminations    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 2 (3,998)
Net cash (used in) provided by investing activities 1,408,980 45,010
Net cash provided by (used in) financing activities (1,408,982) (41,012)
Net (decrease) increase in cash and cash equivalents 0 0
Cash and cash equivalents at beginning of period 0 0
Cash and cash equivalents at end of period $ 0 $ 0