Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Property, Plant and Equipment - Components of Property, Plant and Equipment (Detail)

v3.19.1
Property, Plant and Equipment - Components of Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Apr. 03, 2018
Movement in Property, Plant and Equipment [Roll Forward]        
Cost, Beginning balance $ 1,830.0 $ 1,646.3    
Additions 340.8 217.8    
Property, plant and equipment       $ 230.3
Transfers (10.3)      
Disposals (55.4) (34.9)    
Exchange differences (54.0) 0.8    
Cost, Ending balance 2,281.4 1,830.0 $ 1,646.3  
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]        
Accumulated depreciation, Beginning balance (837.9) (767.3)    
Charge for the year (109.6) (88.9) (80.3)  
Transfers 4.5      
Disposals 27.4 18.5    
Exchange differences 22.6 (0.2)    
Accumulated depreciation, Ending balance (893.0) (837.9) (767.3)  
Net book amount 1,388.4 992.1    
Land        
Movement in Property, Plant and Equipment [Roll Forward]        
Cost, Beginning balance 68.2 69.5    
Additions 1.6 0.0    
Property, plant and equipment       19.2
Transfers 0.0      
Disposals (0.2) (1.4)    
Exchange differences (5.0) 0.1    
Cost, Ending balance 83.8 68.2 69.5  
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]        
Accumulated depreciation, Beginning balance 0.0 0.0    
Charge for the year 0.0 0.0    
Transfers 0.0      
Disposals 0.0 0.0    
Exchange differences 0.0 0.0    
Accumulated depreciation, Ending balance 0.0 0.0 0.0  
Net book amount 83.8 68.2    
Buildings        
Movement in Property, Plant and Equipment [Roll Forward]        
Cost, Beginning balance 346.8 344.5    
Additions 58.9 7.9    
Property, plant and equipment       44.1
Transfers (6.0)      
Disposals (5.9) (5.6)    
Exchange differences (5.1) 0.0    
Cost, Ending balance 432.8 346.8 344.5  
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]        
Accumulated depreciation, Beginning balance (137.4) (128.0)    
Charge for the year (14.6) (11.3)    
Transfers 0.8      
Disposals 4.1 1.9    
Exchange differences 3.2 0.0    
Accumulated depreciation, Ending balance (143.9) (137.4) (128.0)  
Net book amount 288.9 209.4    
Machinery and Equipment        
Movement in Property, Plant and Equipment [Roll Forward]        
Cost, Beginning balance 1,236.1 1,175.7    
Additions 203.6 83.8    
Property, plant and equipment       159.5
Transfers 2.2      
Disposals (48.1) (24.3)    
Exchange differences (45.7) 0.9    
Cost, Ending balance 1,507.6 1,236.1 1,175.7  
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]        
Accumulated depreciation, Beginning balance (700.5) (639.3)    
Charge for the year (95.0) (77.6)    
Transfers 3.7      
Disposals 23.3 16.6    
Exchange differences 19.4 (0.2)    
Accumulated depreciation, Ending balance (749.1) (700.5) (639.3)  
Net book amount 758.5 535.6    
Construction in Progress        
Movement in Property, Plant and Equipment [Roll Forward]        
Cost, Beginning balance 178.9 56.6    
Additions 76.7 126.1    
Property, plant and equipment       $ 7.5
Transfers (6.5)      
Disposals (1.2) (3.6)    
Exchange differences 1.8 (0.2)    
Cost, Ending balance 257.2 178.9 56.6  
Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward]        
Accumulated depreciation, Beginning balance 0.0 0.0    
Charge for the year 0.0 0.0    
Transfers 0.0      
Disposals 0.0 0.0    
Exchange differences 0.0 0.0    
Accumulated depreciation, Ending balance 0.0 0.0 $ 0.0  
Net book amount $ 257.2 $ 178.9