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Long-term Debt - Schedule of Debt (Details) - USD ($) $ in Millions | Jun. 30, 2017 | Apr. 01, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Capital lease and other obligations | $ 79.9 |  |
Less: Liabilities subject to compromise |  | $ 8,077.4 | $ 8,080.3
Successor |  |  |
Debt Instrument [Line Items] |  |  |
Capital lease and other obligations | 92.4 |  |
Less: Debt issuance costs | (78.4) |  |
Total debt | 1,957.1 |  |
Less: Current portion of long-term debt | 189.0 |  |
Less: Liabilities subject to compromise | 0.0 |  |
Long-term debt | 1,768.1 |  |
Successor | Senior Notes | 6.00% Senior Secured Notes due March 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 500.0 |  |
Stated interest rate | 6.00% |  |
Successor | Senior Notes | 6.00% Senior Secured Notes due March 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 500.0 |  |
Stated interest rate | 6.375% |  |
Successor | Senior Notes | 6.00% Senior Notes due November 2018 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 0.0 |  |
Stated interest rate | 6.00% |  |
Successor | Senior Notes | 6.50% Senior Notes due September 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 0.0 |  |
Stated interest rate | 6.50% |  |
Successor | Senior Notes | 6.25% Senior Notes due November 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 0.0 |  |
Stated interest rate | 6.25% |  |
Successor | Senior Notes | 10.00% Senior Secured Second Lien Notes due March 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 0.0 |  |
Stated interest rate | 10.00% |  |
Successor | Senior Notes | 7.875% Senior Notes due November 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 0.0 |  |
Stated interest rate | 7.875% |  |
Successor | Term Loan | Senior Secured Term Loan due 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 943.1 |  |
Successor | Term Loan | 2013 Term Loan Facility due September 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | 0.0 |  |
Successor | Line of Credit | Revolving Credit Facility | 2013 Revolver |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | 0.0 |  |
Successor | Subordinated Debt | Convertible Junior Subordinated Debentures due December 2066 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 0.0 |  |
Predecessor |  |  |
Debt Instrument [Line Items] |  |  |
Capital lease and other obligations |  |  | 20.1
Less: Debt issuance costs |  |  | (70.8)
Total debt |  |  | 7,791.4
Less: Current portion of long-term debt |  |  | 20.2
Less: Liabilities subject to compromise |  |  | 7,771.2
Long-term debt |  |  | 0.0
Predecessor | Senior Notes | 6.00% Senior Secured Notes due March 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 0.0
Stated interest rate |  |  | 6.00%
Predecessor | Senior Notes | 6.00% Senior Secured Notes due March 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 0.0
Stated interest rate |  |  | 6.375%
Predecessor | Senior Notes | 6.00% Senior Notes due November 2018 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 1,518.8
Stated interest rate |  |  | 6.00%
Predecessor | Senior Notes | 6.50% Senior Notes due September 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 650.0
Stated interest rate |  |  | 6.50%
Predecessor | Senior Notes | 6.25% Senior Notes due November 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 1,339.6
Stated interest rate |  |  | 6.25%
Predecessor | Senior Notes | 10.00% Senior Secured Second Lien Notes due March 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 979.4
Stated interest rate |  |  | 10.00%
Predecessor | Senior Notes | 7.875% Senior Notes due November 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 247.8
Stated interest rate |  |  | 7.875%
Predecessor | Term Loan | Senior Secured Term Loan due 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 0.0
Predecessor | Term Loan | 2013 Term Loan Facility due September 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | 1,162.3
Predecessor | Line of Credit | Revolving Credit Facility | 2013 Revolver |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | 1,558.1
Predecessor | Subordinated Debt | Convertible Junior Subordinated Debentures due December 2066 |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt |  |  | $ 386.1

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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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