XML 60 R42.htm IDEA: XBRL DOCUMENT v3.5.0.2
Summary of Significant Accounting Policies - Estimated Useful Lives of Property, Plant and Equipments (Detail) - USD ($)
$ in Millions
12 Months Ended
Sep. 24, 2016
Sep. 26, 2015
Sep. 27, 2014
Property, Plant and Equipment [Line Items]      
Manufacturing Equipment And Software $ 381.9 $ 365.9  
Equipment Under Customer Usage Agreements 334.6 305.7  
Buildings and Improvements, Gross 186.1 182.1  
Leasehold Improvements, Gross 65.6 59.2  
Land 51.9 51.4  
Furniture and Fixtures, Gross 18.4 17.3  
Property, Plant and Equipment, Gross 1,038.5 981.6  
Less - accumulated depreciation and amortization (578.3) (524.5)  
Property, plant and equipment, net $ 460.2 $ 457.1 $ 461.9
Building and Improvements [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 35 years    
Building and Improvements [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 40 years    
Equipment and Software [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 3 years    
Equipment and Software [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 10 years    
Equipment Under Customer Usage Agreements [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 3 years    
Equipment Under Customer Usage Agreements [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 8 years    
Furniture and Fixtures [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 5 years    
Furniture and Fixtures [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life 7 years    
Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, estimated useful life Shorter of the Original Term of Lease or Estimated Useful Life