Annual report pursuant to Section 13 and 15(d)

Investments (Details)

v3.6.0.2
Investments (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Schedule of Investments [Line Items]        
Amortized Cost   $ 35.8 $ 11.5  
Fair Value   35.8 11.5  
Redemptions of Available-For-Sale Securities   10.7 109.8  
Proceeds from Sale of Available-For-Sale Securities   0.0 9.5  
Impairment of Equity Method Investment   0.0 0.0 $ 20.2
Proceeds from Dividends Received   0.0 0.0 $ 0.0
Bella-Veneet Oy [Member]        
Schedule of Investments [Line Items]        
Percent Ownership Held by BC in Bella 36.00%     36.00%
Impairment of Equity Method Investment $ 20.2      
Fair Value of Investment in Bella $ 1.1     $ 1.1
Agency Bonds [Member]        
Schedule of Investments [Line Items]        
Amortized Cost   0.0 2.5  
Fair Value   0.0 2.5  
Corporate Bonds [Member]        
Schedule of Investments [Line Items]        
Amortized Cost   0.0 8.2  
Fair Value   0.0 8.2  
Commercial Paper [Member]        
Schedule of Investments [Line Items]        
Amortized Cost   35.0 0.0  
Fair Value   35.0 0.0  
U.S. Treasury Bills [Member]        
Schedule of Investments [Line Items]        
Amortized Cost   0.8 0.8  
Fair Value   $ 0.8 $ 0.8