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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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Borrowings [Line Items]

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Long term debt and capital lease obligations current and non-current.

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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

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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

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Amount of long-term debt and capital lease obligations including current maturities.

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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

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-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

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