v3.25.2
Goodwill and Other Intangible Assets - Additional Information (Detail)
3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
May 04, 2025
USD ($)
May 05, 2024
USD ($)
Jun. 24, 2025
USD ($)
Mar. 29, 2025
USD ($)
Jun. 29, 2024
USD ($)
Mar. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Segment
Jun. 24, 2025
USD ($)
Jun. 29, 2024
USD ($)
Dec. 28, 2024
USD ($)
Goodwill And Intangible Assets Disclosure [Line Items]                      
Number of reportable segments | Segment               1      
Number of operating segments | Segment               1      
Finite-lived intangible assets, aggregate amortization expense $ 1,623,000     $ 6,455,000   $ 8,472,000     $ 12,405,000 $ 17,762,000  
Goodwill impairment   $ 0 $ 0                
Franchise right maturity period               7 years      
Total other intangible assets 529,188,000             $ 529,188,000     $ 357,998,000
Fresh Start Accounting                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Total other intangible assets $ 529,000,000             $ 529,000,000      
Behavioral Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Goodwill impairment         $ 0            
Percentage of goodwill held         62.70%            
Behavioral Reporting Unit | Minimum                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Percentage of estimated fair value in excess of carrying amount         55.00%            
Clinical Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Goodwill impairment         $ 0            
Percentage of goodwill held         37.30%            
Clinical Reporting Unit | Minimum                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Percentage of estimated fair value in excess of carrying amount         60.00%            
All Reporting Units | Minimum                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Percentage of estimated fair value in excess of carrying amount             25.00%        
All Reporting Units | Clinical Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Goodwill impairment             $ 0        
Database                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Estimated margin rate               19.00%      
Developed technology | Behavioral Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Estimated royalty rate               4.00%      
Developed technology | Clinical Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Estimated royalty rate               5.00%      
Customers/subscribers                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Discount rate               17.00%      
Estimated attrition rate               10.00%      
Customers/subscribers | Behavioral Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Estimated attrition rate               25.00%      
Customers/subscribers | Clinical Reporting Unit                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Estimated attrition rate               40.00%      
Franchise rights acquired | United States                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Indefinite-lived intangible assets, impairment charges         $ 27,549,000   $ 251,431,000        
Indefinite-lived franchise rights acquired percentage         100.00%            
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]         Asset Impairment Charges   Asset Impairment Charges        
Franchise rights acquired | United Kingdom                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Indefinite-lived intangible assets, impairment charges             $ 155,000        
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]             Asset Impairment Charges        
Franchise rights acquired | Australia                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Indefinite-lived intangible assets, impairment charges             $ 4,074,000        
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]             Asset Impairment Charges        
Franchise rights acquired | New Zealand                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Indefinite-lived intangible assets, impairment charges             $ 2,328,000        
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]             Asset Impairment Charges        
Trade names                      
Goodwill And Intangible Assets Disclosure [Line Items]                      
Estimated royalty rate               6.00%