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Long-term Debt (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 20, 2012 | Dec. 09, 2010 | Aug. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Oct. 20, 2011
Borrowings |  |  |  |  |  |  |
Unamortized discount and debt issuance costs |  |  |  | $ (3.6) | $ (4.6) |  |
Total long-term debt |  |  |  | 596.4 | 745.4 |  |
Less current portion of long-term debt |  |  |  |  | (149.8) |  |
Total long-term debt, net of current portion |  |  |  | 596.4 | 595.6 |  |
Other long-term assets |  |  |  | 25.0 | 23.4 |  |
Cash payments for interest |  |  |  | $ 35.9 | 35.1 | $ 35.2 |
Reclassification | Accounting Standards Update 2015-03 |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Total long-term debt, net of current portion |  |  |  |  | (3.1) |  |
Other long-term assets |  |  |  |  | $ (3.1) |  |
3.75% senior notes due 2022 |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Interest rate (as a percent) | 3.75% |  |  | 3.75% | 3.75% |  |
Long-term debt, carrying amount |  |  |  | $ 350.0 | $ 350.0 |  |
Par Value | $ 350.0 |  |  |  |  |  |
Proceeds from issuance of debt | 348.9 |  |  |  |  |  |
Issuance costs including underwriter's, credit rating agencies' and attorneys' fees and other costs, which are included in other long-term assets | 2.9 |  |  |  |  |  |
Unamortized discount | $ (1.1) |  |  |  |  |  |
3.75% senior notes due 2022 | Significant Observable Inputs (Level 2) |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Fair value of notes |  |  |  | $ 347.2 | $ 349.3 |  |
5.125% senior notes due 2020 |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.125% |  | 5.125% | 5.125% |  |
Long-term debt, carrying amount |  |  |  | $ 250.0 | $ 250.0 |  |
Par Value |  | $ 250.0 |  |  |  |  |
Proceeds from issuance of debt |  | 248.9 |  |  |  |  |
Long-term debt redemption price, description of variable discount rate |  |  |  | Treasury Rate |  |  |
Long-term debt redemption price, basis spread on variable discount rate (as a percent) |  |  |  | 0.35% |  |  |
Percentage of principal amount at which the entity may redeem some or all of the notes prior to specified date |  |  |  | 100.00% |  |  |
Percentage of principal amount at which the entity may redeem some or all of the notes after specified date |  |  |  | 100.00% |  |  |
Unamortized discount |  | $ 1.1 |  |  |  |  |
5.125% senior notes due 2020 | Change-in-control |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Percentage of the principal amount at which the notes are redeemable |  |  |  | 101.00% |  |  |
5.125% senior notes due 2020 | Significant Observable Inputs (Level 2) |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Fair value of notes |  |  |  | $ 263.1 | $ 268.6 |  |
6.125% senior notes due 2016 |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Interest rate (as a percent) |  |  | 6.125% |  | 6.125% |  |
Long-term debt, carrying amount |  |  |  |  | $ 150.0 |  |
Repayment of debt |  |  | $ 150.0 |  |  |  |
6.125% senior notes due 2016 | Significant Observable Inputs (Level 2) |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Fair value of notes |  |  |  |  | 152.9 |  |
Revolving credit facility |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | $ 600.0
Remaining borrowing capacity |  |  |  | 600.0 |  |  |
Interest on borrowings |  |  |  | $ 0.0 | $ 0.0 |  |

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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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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. + References Reference 1: 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 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 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. 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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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