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Summary of Significant Accounting Policies - Additional Information (Detail)
3 Months Ended 12 Months Ended
Oct. 27, 2023
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Jul. 01, 2023
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Sep. 24, 2022
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Sep. 25, 2021
Sep. 30, 2023
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Customer
Sep. 24, 2022
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Sep. 25, 2021
USD ($)
Nov. 15, 2023
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Dec. 31, 2022
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Nov. 29, 2021
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Jun. 17, 2021
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Significant Accounting Policies [Line Items]                      
Impairment charge   $ 186,900,000                  
Cash Equivalents Maturity Period         three months or less            
Gross Carrying Value     $ 5,518,200,000   $ 5,342,000,000 $ 5,518,200,000          
Accumulated Amortization     4,237,600,000   4,453,400,000 4,237,600,000          
Goodwill     3,236,500,000   3,281,300,000 3,236,500,000          
Notional Amount         $ 377,900,000            
Product Warranty Term         1 year            
Advertising cost         $ 31,400,000 78,100,000 $ 9,800,000        
Notional amount         $ 1,000,000,000            
Subsequent Event                      
Significant Accounting Policies [Line Items]                      
Accelerated Share Repurchases, Settlement (Payment) or Receipt               $ 500,000,000      
Subsequent Event | 2021 Term Loan | Secured Term Loan                      
Significant Accounting Policies [Line Items]                      
Repayments of Long-term Debt $ 250,000,000                    
Customer Concentration Risk                      
Significant Accounting Policies [Line Items]                      
Number of customers with balance greater than specified percentage | Customer         0            
Trade Names [Member]                      
Significant Accounting Policies [Line Items]                      
Gross Carrying Value     265,200,000   $ 253,600,000 265,200,000          
Accumulated Amortization     203,300,000   212,800,000 203,300,000          
Developed Technology Rights [Member]                      
Significant Accounting Policies [Line Items]                      
Gross Carrying Value     4,565,600,000   4,411,000,000 4,565,600,000          
Accumulated Amortization     3,458,200,000   3,649,500,000 3,458,200,000          
In Process Research and Development [Member]                      
Significant Accounting Policies [Line Items]                      
Gross Carrying Value     33,000,000.0   25,700,000 33,000,000.0          
Accumulated Amortization     0   $ 0 $ 0          
In Process Research and Development [Member]                      
Significant Accounting Policies [Line Items]                      
Impairment charge   10,500,000 $ 27,700,000                
Minimum                      
Significant Accounting Policies [Line Items]                      
Intangible assets useful life         5 years            
Minimum | Accounts receivable [Member] | Customer Concentration Risk                      
Significant Accounting Policies [Line Items]                      
Concentration risk, percentage         10.00%            
Minimum | Total revenues [Member] | Customer Concentration Risk                      
Significant Accounting Policies [Line Items]                      
Concentration risk, percentage       10.00% 10.00% 10.00%          
Maximum                      
Significant Accounting Policies [Line Items]                      
Intangible assets useful life         30 years            
Bolder Surgical                      
Significant Accounting Policies [Line Items]                      
Goodwill                   $ 68,800,000  
Bolder Surgical | Trade Names [Member]                      
Significant Accounting Policies [Line Items]                      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill                 $ 1,400,000    
Mobidiag Oy                      
Significant Accounting Policies [Line Items]                      
Impairment charge   186,900,000                  
Goodwill                     $ 427,700,000
Mobidiag Oy | Equipment [Member]                      
Significant Accounting Policies [Line Items]                      
Impairment charge   12,100,000                  
Mobidiag Oy | Trade Names [Member]                      
Significant Accounting Policies [Line Items]                      
Impairment charge   $ 10,700,000                  
Foreign Exchange Forward [Member]                      
Significant Accounting Policies [Line Items]                      
Derivative contract period, or less         1 year            
Interest rate caps - derivative                      
Significant Accounting Policies [Line Items]                      
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax         $ 0 $ 0 $ 400,000