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- Definition

Successor Notes

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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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.

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No definition available.

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The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

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- Definition

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

+ References

No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Total amount of liabilities subject to compromise.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Long-term Debt (Details) - USD ($)	3 Months Ended
Long-term Debt (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016	Apr. 13, 2016	Mar. 31, 2016
Debt Instrument [Line Items]
Interest Expense, Adequate Protection Payments	$ 29,800,000
Debt Instrument, Unamortized Discount (Premium), Net		$ 89,000,000
Successor Notes	1,000.0
Capital lease obligations	17,600,000	19,700,000
Other	500,000	400,000
Liabilities subject to compromise	8,416,700,000	8,440,200,000
Current portion of long-term debt	18,200,000	20,200,000
Long-term debt, less current portion	950,500,000	0
Letters of Credit Outstanding, Amount	167,200,000
6.00% Senior Notes due March 2022 [Member] [Domain]
Debt Instrument [Line Items]
Long-term debt	475,400,000	0
6.375% Senior Notes due March 2025 [Domain] [Domain]
Debt Instrument [Line Items]
Long-term debt	475,100,000	0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt	1,555,200,000	1,558,100,000		$ 947,000,000
Line of Credit Facility, Maximum Borrowing Capacity		1,650,000,000
Letters of Credit Outstanding, Amount			$ 675,000,000
2013 Term Loan Facility due September 2020 [Member]
Debt Instrument [Line Items]
Long-term debt	1,154,500,000	1,154,500,000
6.00% Senior Notes due November 2018 [Member]
Debt Instrument [Line Items]
Long-term debt	1,509,900,000	1,509,900,000
6.50% Senior Notes due September 2020 [Member]
Debt Instrument [Line Items]
Long-term debt	645,800,000	645,800,000
6.25% Senior Notes due November 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	1,327,700,000	1,327,700,000
10.00% Senior Secured Second Lien Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	962,300,000	962,300,000
7.875% Senior Notes due November 2026 [Member]
Debt Instrument [Line Items]
Long-term debt	245,900,000	245,900,000
Convertible Junior Subordinated Debentures due December 2066 [Member]
Debt Instrument [Line Items]
Long-term debt	367,100,000	367,100,000
DIP Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt Issuance Cost	25,600,000
Long-term Debt [Member]
Debt Instrument [Line Items]
Liabilities subject to compromise	7,768,300,000	7,771,200,000
Carrying value
Debt Instrument [Line Items]
Total debt	8,737,000,000	$ 7,791,400,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital lease obligations	$ 18,000,000