Annual report pursuant to Section 13 and 15(d)

Financing - Components of Long-Term Debt (Detail)

v3.10.0.1
Financing - Components of Long-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Deferred financing fees and discount on debt $ (5.1) $ (5.9)
Total debt 310.3 314.0
Current portion of debt (4.6) (5.0)
Noncurrent portion of debt 305.7 309.0
Term Loan Facility [Member]    
Debt Instrument [Line Items]    
Secured Debt 312.8 316.0
Long-term debt   316.0
Capital Lease Obligations [Member]    
Debt Instrument [Line Items]    
Obligations under capital lease $ 2.6 $ 3.9