SENIOR NOTES, NET - Schedule of Senior Notes, Net (Details) - Senior Notes [Member] - USD ($) |
Jun. 30, 2018 |
Dec. 31, 2017 |
Jun. 30, 2015 |
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Debt Instrument [Line Items] | |||||||
Net debt issuance costs | $ (12,017,000) | $ (9,830,000) | |||||
Senior notes, net | 1,294,705,000 | 1,266,450,000 | |||||
4.50% senior notes due 2018 [Member] | |||||||
Debt Instrument [Line Items] | |||||||
Senior notes, gross | $ 0 | $ 175,000,000 | |||||
Stated interest rate | 4.50% | 4.50% | |||||
7.15% senior notes due 2020 [Member] | |||||||
Debt Instrument [Line Items] | |||||||
Senior notes, gross | $ 300,995,000 | $ 301,280,000 | |||||
Stated interest rate | 7.15% | 7.15% | |||||
Unamortized premium | $ 995,000 | $ 1,280,000 | |||||
7.00% senior notes due 2022 [Member] | |||||||
Debt Instrument [Line Items] | |||||||
Senior notes, gross | $ 300,000,000 | $ 300,000,000 | |||||
Stated interest rate | 7.00% | 7.00% | |||||
6.00% senior notes due 2025 [Member] | |||||||
Debt Instrument [Line Items] | |||||||
Senior notes, gross | $ 405,727,000 | [1] | $ 200,000,000 | [1] | $ 200,000,000 | ||
Stated interest rate | 6.00% | 6.00% | 6.00% | ||||
Unamortized premium | $ 5,727,000 | $ 0 | |||||
5.125% senior notes due 2027 [Member] | |||||||
Debt Instrument [Line Items] | |||||||
Senior notes, gross | $ 300,000,000 | $ 300,000,000 | |||||
Stated interest rate | 5.125% | 5.125% | |||||
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount, after accumulated amortization, of debt premium. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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