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Long-term Debt - Schedule of Debt (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Debt Instrument [Line Items] |  |
Total finance lease liabilities | $ 27.3 | $ 15.2
Less: Debt issuance costs | (42.7) | (55.5)
Long-term Debt and Lease Obligation, Including Current Maturities | 1,547.8 | 1,310.8
Less: Current portion of long-term debt | 44.9 | 18.3
Long-term debt | 1,502.9 | 1,292.5
Senior Notes | 6.000% Senior Secured Notes due March 2022 |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 459.0 | 459.0
Stated interest rate | 6.00% |
Senior Notes | 6.375% Senior Secured Notes due March 2025 |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 500.0 | 500.0
Stated interest rate | 6.375% |
Term Loan | Senior Secured Term Loan due 2025, net of original issue discount |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 388.2 | 392.1
Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 216.0 | $ 0.0

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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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