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PROPERTY AND EQUIPMENT, NET - Additional information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 28, 2024
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Property and Equipment, Net          
Depreciation expense   $ 8.6 $ 8.5 $ 25.2 $ 25.4
Gain on sale of property held for sale       $ 1.0 $ 0.0
Former Chicago Headquarters Location | Disposal group, disposed of by sale, not discontinued operations          
Property and Equipment, Net          
Purchase price of the property $ 12.0        
Purchase price of the property, cash 5.0        
Purchase price of the property, seller financing 7.0        
Gain on sale of property held for sale 1.0        
Secured promissory note receivable $ 7.0        
Secured promissory note receivable, interest rate (as a percent) 4.00%        
Term of note receivable unless the purchaser sells the property 2 years