v3.26.3
Significant Accounting Policies - Additional Information (Detail)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Apr. 17, 2025
USD ($)
Apr. 30, 2026
USD ($)
Apr. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Product
Segment
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Subsidiary or Equity Method Investee [Line Items]                  
General and administrative expenses       $ 432,100,000   $ 413,000,000 $ 1,299,700,000 $ 1,221,800,000  
Cash outflow             298,000,000 235,000,000  
Credit card receivables       69,600,000     69,600,000   $ 59,400,000
Importer receivables       32,600,000     32,600,000   17,800,000
Bad-debt expense       200,000   0 300,000 100,000  
Allowance for doubtful accounts       1,800,000     1,800,000   1,800,000
Allowances for product returns             $ 2,000,000   2,000,000
Number of geographic regions | Segment             5    
Number of product categories | Product             5    
Other operating income       0   0 $ 5,500,000 4,800,000  
Loss on extinguishment of debt             (94,600,000) 0  
Fair value changes of contigent consideration liability             0    
Minority interest increase             6,200,000    
Secretariat of the federal revenue bureau of brazil [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Restricted cash       $ 15,200,000     $ 15,200,000   $ 15,200,000
HBL Link Bioscience LLC [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Consideration to acquire assets     $ 6,500,000            
Ownership interest percentage     51.00%            
Link BioSciences Inc [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Cash paid     $ 6,500,000            
Asset acquisition contingent payments     0            
Reduction in cash     6,500,000            
Assets estimated fair value at the acquisition date     12,700,000            
Link BioSciences Inc [Member] | Goodwill [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Assets estimated fair value at the acquisition date     7,200,000            
Link BioSciences Inc [Member] | Software [Member] | Property Plant, and Equipment [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Assets estimated fair value at the acquisition date     2,500,000            
Link BioSciences Inc [Member] | Manufacturing Equipment [Member] | Property Plant, and Equipment [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Assets estimated fair value at the acquisition date     2,500,000            
Pruvit [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Consideration to acquire assets $ 19,000,000                
Pruvit [Member] | Developed Technology and Software [Member] | Property Plant, and Equipment [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Consideration to acquire assets 14,400,000                
Customer Relationships [Member] | Link BioSciences Inc [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Assets estimated fair value at the acquisition date     $ 500,000            
Customer Relationships [Member] | Pruvit [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Consideration to acquire assets 4,300,000                
Assembled Workforce [Member] | Pruvit [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Consideration to acquire assets 300,000                
Minimum [Member] | Contingent Milestone Payment Period [Member] | Pruvit [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Asset acquisition contingent payments 5,000,000                
Maximum [Member] | Contingent Milestone Payment Period [Member] | Pruvit [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Asset acquisition contingent payments $ 25,000,000                
Pro2col Software, LLC [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Equity interest percentage       5.00%     5.00%    
Additional equity interest percentage       5.00%     5.00%    
Proceeds from equity interest             $ 7,500,000    
Increased ownership percentage       10.00%     10.00%    
Additional equity interest percentage to be acquired       10.00%     10.00%    
Member compensation Liabilities [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Cash outflow               700,000  
Pro2col Health LLC [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Milestones period 10 years                
Additional payments $ 0                
Pro2col Health LLC [Member] | Contingent Milestone Payments Second [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Maximum milestone contingent payments 46,000,000                
Pro2col Health LLC [Member] | Minimum [Member] | Contingent Milestone Payments Third [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Contingent payments 5,000,000                
Pro2col Health LLC [Member] | Maximum [Member] | Contingent Milestone Payments First [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Contingent payments 2,000,000                
Pro2col Health LLC [Member] | Maximum [Member] | Contingent Milestone Payments Second [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Contingent payments 3,000,000                
Pro2col Health LLC [Member] | Maximum [Member] | Contingent Milestone Payments Third [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Contingent payments $ 15,000,000                
BQ Holdings [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration   $ 55,000,000              
Goodwill expected to be deductible for tax purposes   $ 23,500,000              
Finite-lived intangible assets acquired, useful life   5 years              
Business combination base consideration and contingent consideration   $ 54,200,000              
Present value of contingent consideration   45,200,000              
liability related to contingent consideration   9,000,000   $ 9,000,000     $ 9,000,000    
Fair value changes of contigent consideration liability       0          
Maximum milestone contingent payments   95,000,000              
Cash paid   10,000,000              
BQ Holdings [Member] | Goodwill [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration         $ 26,800,000        
BQ Holdings [Member] | Intangible Assets [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration   6,900,000              
BQ Holdings [Member] | Inventory [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration   1,000,000              
BQ Holdings [Member] | Other Asset [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration   5,300,000              
BQ Holdings [Member] | Deferred Tax Asset [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration   1,000,000              
BQ Holdings [Member] | Developed Technology [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Business combination, consideration   13,200,000              
BQ Holdings [Member] | Minimum [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Contingent payments   5,000,000              
BQ Holdings [Member] | Maximum [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Contingent payments   15,000,000              
Maximum milestone contingent payments   $ 95,000,000              
Reclassification [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
General and administrative expenses           34,600,000   105,600,000  
2024 Credit Facility [Member] | 2029 Secured Notes [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Loss on extinguishment of debt             (94,600,000)    
China [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Other operating income       $ 0   $ 0 $ 5,500,000 $ 4,800,000