XML 83 R69.htm IDEA: XBRL DOCUMENT v3.3.1.900
External Debt and Financing Arrangements - Components of External Long-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Long-term debt $ 1,171.6 $ 670.0
Less: current portion 0.0 26.3
Total long-term debt 1,171.6 643.7
Senior Unsecured Notes [Member] | Notes Due June Twenty Twenty [Member]    
Debt Instrument [Line Items]    
Long-term debt 397.7  
Senior Unsecured Notes [Member] | Notes Due June Twenty Twenty Five [Member]    
Debt Instrument [Line Items]    
Long-term debt 493.9  
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term debt   145.0
Term Loan Facilities [Member]    
Debt Instrument [Line Items]    
Long-term debt $ 280.0 $ 525.0