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Long-Term Debt - Senior Notes (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Mar. 02, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Debt Instrument [Line Items] |  |  |  |
Debt, long-term and short-term |  | $ 3,255.9 | $ 3,267.8 |
Net loss on extinguishments of long-term debt |  | (57.4) | (2.1) | $ (24.3)
Deferred finance costs, net |  | $ 20.4 | 33.4 |
Senior notes due 2022 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate |  | 6.00% |  |
Debt, long-term and short-term | $ 600.0 |  | 600.0 |
Redemption price, percentage | 106.182% |  |  |
Net loss on extinguishments of long-term debt |  | $ (43.0) |  |
Redemption premium |  | 37.0 |  |
Capitalized fees as deferred financing costs |  | $ 6.0 |  |
Deferred finance costs, net |  |  | 5.6 |
Senior notes due 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate |  | 5.00% |  |
Debt, long-term and short-term |  | $ 525.0 | 525.0 |
Deferred finance costs, net |  | $ 4.5 | 5.3 |
Senior notes due 2024 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate |  | 5.50% |  |
Debt, long-term and short-term |  | $ 575.0 | 575.0 |
Deferred finance costs, net |  | $ 5.2 | $ 6.0 |
Senior notes due 2025 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate |  | 5.00% |  |
Debt, long-term and short-term | $ 600.0 | $ 600.0 |  |
Deferred finance costs, net |  | $ 7.3 |  |

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- Definition For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) and premiums that will be charged against earnings over the life of the debt instruments to which such costs and premiums pertain. + References No definition available. + Details
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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. + References Reference 1: 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 2: 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(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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