Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Summary of Selected Pro Forma Balance Sheet (Detail)

v3.8.0.1
Subsequent Events - Summary of Selected Pro Forma Balance Sheet (Detail) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2015
ASSETS        
Cash and cash equivalents $ 1,636.3 $ 844.0 $ 788.3 $ 889.8
Total assets 3,422.5 2,565.4    
LIABILITIES:        
Other non-current liabilities 168.1 139.2    
Total liabilities 3,203.5 2,369.1    
SHAREHOLDERS’ EQUITY (DEFICIT):        
Common shares 0.1 0.1    
Paid-in capital in excess of par value 452.0 467.6    
Retained earnings (accumulated deficit) 240.7 (66.3)    
Total shareholders’ equity (deficit) 219.0 196.3    
Total liabilities and shareholders’ equity (deficit) 3,422.5 $ 2,565.4    
Dutch Auction Tender Offer [Member] | Adjustment [Member]        
ASSETS        
Cash and cash equivalents (457.8)      
Total assets (457.8)      
LIABILITIES:        
Other non-current liabilities 7.3      
Total liabilities 7.3      
SHAREHOLDERS’ EQUITY (DEFICIT):        
Common shares 0.0      
Paid-in capital in excess of par value (40.4)      
Retained earnings (accumulated deficit) (424.7)      
Total shareholders’ equity (deficit) (465.1)      
Total liabilities and shareholders’ equity (deficit) (457.8)      
Dutch Auction Tender Offer [Member] | Pro Forma [Member]        
ASSETS        
Cash and cash equivalents 1,178.5      
Total assets 2,964.7      
LIABILITIES:        
Other non-current liabilities 175.4      
Total liabilities 3,210.8      
SHAREHOLDERS’ EQUITY (DEFICIT):        
Common shares 0.1      
Paid-in capital in excess of par value 411.6      
Retained earnings (accumulated deficit) (184.0)      
Total shareholders’ equity (deficit) (246.1)      
Total liabilities and shareholders’ equity (deficit) $ 2,964.7