v3.26.1
Intangible Assets - Summary of Intangible Assets, Accumulated Amortization and Weighted Average Remaining Lives (Details) - USD ($)
$ in Millions
Jul. 02, 2026
Jan. 01, 2026
Indefinite-Lived Intangible Assets [Line Items]    
Intangible assets, Gross carrying amount $ 394.9 $ 394.9
Intangible assets, Accumulated amortization (102.1) (86.1)
Intangible assets, Net $ 292.8 $ 308.8
ESA Party Agreements    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 14 years 7 months 6 days 15 years 1 month 6 days
Intangible assets, Gross carrying amount $ 223.5 $ 224.0
Intangible assets, Accumulated amortization (46.4) (40.3)
Intangible assets, Net $ 177.1 $ 183.7
Network Affiliates    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 13 years 1 month 6 days 13 years 7 months 6 days
Intangible assets, Gross carrying amount $ 75.0 $ 75.0
Intangible assets, Accumulated amortization (13.6) (11.2)
Intangible assets, Net $ 61.4 $ 63.8
Customer Relationships    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 3 years 1 month 6 days 3 years 7 months 6 days
Intangible assets, Gross carrying amount $ 75.0 $ 75.0
Intangible assets, Accumulated amortization (36.2) (29.9)
Intangible assets, Net $ 38.8 $ 45.1
Trademark    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 5 years 1 month 6 days 5 years 7 months 6 days
Intangible assets, Gross carrying amount $ 15.0 $ 15.0
Intangible assets, Accumulated amortization (5.4) (4.5)
Intangible assets, Net $ 9.6 $ 10.5
Datasets    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 1 year 3 months 18 days 1 year 9 months 18 days
Intangible assets, Gross carrying amount $ 0.8 $ 0.4
Intangible assets, Accumulated amortization (0.2) (0.1)
Intangible assets, Net $ 0.6 $ 0.3
Spotlight Exhibitors    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 11 years 4 months 24 days 11 years 10 months 24 days
Intangible assets, Gross carrying amount $ 4.9 $ 4.8
Intangible assets, Accumulated amortization (0.3) (0.1)
Intangible assets, Net $ 4.6 $ 4.7
Noncompetition Agreements    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 4 years 4 months 24 days 4 years 10 months 24 days
Intangible assets, Gross carrying amount $ 0.4 $ 0.4
Intangible assets, Accumulated amortization 0.0 0.0
Intangible assets, Net $ 0.4 $ 0.4
Trade Name - Spotlight    
Indefinite-Lived Intangible Assets [Line Items]    
Weighted average remaining life 7 years 4 months 24 days 7 years 10 months 24 days
Intangible assets, Gross carrying amount $ 0.3 $ 0.3
Intangible assets, Accumulated amortization 0.0 0.0
Intangible assets, Net $ 0.3 $ 0.3