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Debt - Summary of Components of Long-Term Borrowings and Capital Lease Obligations (Detail) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 13, 2013
--- | --- | --- | ---
Borrowings [Line Items] |  |  |
Total long-term borrowings and capital lease obligations, including current portion | $ 0.6 | $ 44.1 |
Less: Current maturities | 0.0 | 0.0 |
Less: Current capital lease obligations | 0.4 | 0.4 |
Total long-term borrowings and capital lease obligations, net | 0.2 | 43.7 |
Capital Lease Obligations |  |  |
Borrowings [Line Items] |  |  |
Total long-term borrowings and capital lease obligations, including current portion | 0.6 | 0.7 |
2016 Credit Agreement [Member] | Revolving Credit Facility |  |  |
Borrowings [Line Items] |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities | 0.0 | 0.0 |
2013 Credit Agreement [Member] | Revolving Credit Facility |  |  |
Borrowings [Line Items] |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities | 0.0 | 0.0 |
Less: Current maturities |  |  | $ 6.9
Senior Secured Credit Facility | Term Loan |  |  |
Borrowings [Line Items] |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities | $ 0.0 | $ 43.4 |

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- Definition Borrowings [Line Items] + References No definition available. + Details
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- Definition Amount of capital lease obligation due within 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 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&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 210.5-02.20) -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 840 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45023-112735 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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- Definition Amount of long-term debt and capital lease obligation due after one year or beyond 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 Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H + 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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