XML 68 R57.htm IDEA: XBRL DOCUMENT v3.19.1
Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Deferred finance costs $ (0.7) $ (0.9)
Long-term debt 207.8 207.6
Less current portion (21.5) (21.4)
Long-term debt, net of current portion 186.3 186.2
Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term debt 82.5 82.5
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term debt $ 126.0 $ 126.0