Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Cash Flows) (Details)

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CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Cash Flows) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Condensed Financial Statements, Captions [Line Items]    
Net cash (used in) provided by operating activities $ 200,001 $ 617,355
Net cash used in investing activities (290,696) (638,648)
Net cash (used in) provided by financing activities 135,678 (20,880)
Net (decrease) increase in cash, cash equivalents and restricted cash 44,983 (42,173)
Cash, cash equivalents and restricted cash at beginning of period 6,060 52,297
Cash, cash equivalents and restricted cash at end of period 51,043 10,124
Reportable Legal Entities | Parent    
Condensed Financial Statements, Captions [Line Items]    
Net cash (used in) provided by operating activities (95,023) (7,604)
Net cash used in investing activities 351 9,178
Net cash (used in) provided by financing activities 135,678 (20,880)
Net (decrease) increase in cash, cash equivalents and restricted cash 41,006 (19,306)
Cash, cash equivalents and restricted cash at beginning of period 2,768 25,585
Cash, cash equivalents and restricted cash at end of period 43,774 6,279
Reportable Legal Entities | Guarantors    
Condensed Financial Statements, Captions [Line Items]    
Net cash (used in) provided by operating activities 290,147 621,511
Net cash used in investing activities (291,047) (644,507)
Net cash (used in) provided by financing activities 0 0
Net (decrease) increase in cash, cash equivalents and restricted cash (900) (22,996)
Cash, cash equivalents and restricted cash at beginning of period 3,097 26,711
Cash, cash equivalents and restricted cash at end of period 2,197 3,715
Reportable Legal Entities | Non-Guarantors    
Condensed Financial Statements, Captions [Line Items]    
Net cash (used in) provided by operating activities 4,442 3,445
Net cash used in investing activities 0 (3,751)
Net cash (used in) provided by financing activities 435 435
Net (decrease) increase in cash, cash equivalents and restricted cash 4,877 129
Cash, cash equivalents and restricted cash at beginning of period 195 1
Cash, cash equivalents and restricted cash at end of period 5,072 130
Eliminations    
Condensed Financial Statements, Captions [Line Items]    
Net cash (used in) provided by operating activities 435 3
Net cash used in investing activities 0 432
Net cash (used in) provided by financing activities (435) (435)
Net (decrease) increase in cash, cash equivalents and restricted cash 0 0
Cash, cash equivalents and restricted cash at beginning of period 0 0
Cash, cash equivalents and restricted cash at end of period $ 0 $ 0