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CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Cash Flows) (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Condensed Financial Statements, Captions [Line Items] |  |
Net cash provided by (used in) operating activities | $ 608,956 | $ 491,733
Net cash (used in) provided by investing activities | (532,745) | (2,181,480)
Net cash (used in) provided by financing activities | (51,197) | 354,143
Net increase (decrease) in cash, cash equivalents and restricted cash | 25,014 | (1,335,604)
Cash, cash equivalents and restricted cash at beginning of period | 99,557 | 1,460,875
Cash, cash equivalents and restricted cash at end of period | 124,571 | 125,271
Reportable legal entities | Parent |  |
Condensed Financial Statements, Captions [Line Items] |  |
Net cash provided by (used in) operating activities | 416,833 | 310,624
Net cash (used in) provided by investing activities | (344,330) | (2,034,554)
Net cash (used in) provided by financing activities | (51,197) | 354,143
Net increase (decrease) in cash, cash equivalents and restricted cash | 21,306 | (1,369,787)
Cash, cash equivalents and restricted cash at beginning of period | 67,908 | 1,458,882
Cash, cash equivalents and restricted cash at end of period | 89,214 | 89,095
Reportable legal entities | Guarantors |  |
Condensed Financial Statements, Captions [Line Items] |  |
Net cash provided by (used in) operating activities | 192,123 | 181,108
Net cash (used in) provided by investing activities | (188,415) | (1,554,063)
Net cash (used in) provided by financing activities | 0 | 1,407,137
Net increase (decrease) in cash, cash equivalents and restricted cash | 3,708 | 34,182
Cash, cash equivalents and restricted cash at beginning of period | 31,649 | 1,993
Cash, cash equivalents and restricted cash at end of period | 35,357 | 36,175
Reportable legal entities | Non-Guarantor |  |
Condensed Financial Statements, Captions [Line Items] |  |
Net cash provided by (used in) operating activities | (1) | (1)
Net cash (used in) provided by investing activities | (2,318) | (1,843)
Net cash (used in) provided by financing activities | 2,319 | 1,845
Net increase (decrease) in cash, cash equivalents and restricted cash | 0 | 1
Cash, cash equivalents and restricted cash at beginning of period | 0 | 0
Cash, cash equivalents and restricted cash at end of period | 0 | 1
Eliminations |  |
Condensed Financial Statements, Captions [Line Items] |  |
Net cash provided by (used in) operating activities | 1 | 2
Net cash (used in) provided by investing activities | 2,318 | 1,408,980
Net cash (used in) provided by financing activities | (2,319) | (1,408,982)
Net increase (decrease) 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

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 + Details
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- Definition Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 + Details
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