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Financial Instruments (Details 3) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Nov. 30, 2015
Jun. 28, 2015
Dec. 31, 2015
Dec. 31, 2014
Apex        
Reconciliation of changes in fair value of all financial assets and liabilities        
Shares remaining to be acquired 20.00%      
Number of years of closing 3 years      
Tekmar        
Reconciliation of changes in fair value of all financial assets and liabilities        
Increase in fair value of contingent liability based on a revised estimate of the fair value of the contingent consideration   $ 2.3   $ 2.5
Contingent consideration        
Reconciliation of changes in fair value of all financial assets and liabilities        
Balance at the beginning of the period     $ 2.5  
Settlements     (2.3)  
Total realized and unrealized (gains) losses included in Comprehensive income     (0.2)  
Balance at the ending of the period       $ 2.5
Redeemable financial instrument        
Reconciliation of changes in fair value of all financial assets and liabilities        
Purchases     5.5  
Total realized and unrealized (gains) losses included in Comprehensive income     0.2  
Balance at the ending of the period     $ 5.7  
Redeemable financial instrument | Apex        
Reconciliation of changes in fair value of all financial assets and liabilities        
Balance at the ending of the period $ 5.5