v3.22.4
LEASES - Lease Data (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2018
Lease Costs        
Operating lease expense $ 92,032 $ 85,521 $ 86,451  
Short-term lease expense 7,151 8,307 15,130  
Total lease expense 99,183 93,828 101,581  
Other Lease Information        
Operating cash flows from operating leases 91,702 85,244 74,177  
Right-of-use lease assets obtained in exchange for new lease liabilities $ 161,886 $ 52,931 $ 95,005  
Lease Term and Discount Rate        
Weighted average remaining lease term (in years) 6 years 4 months 24 days 6 years 4 months 24 days    
Weighted average discount rate (percent) 3.50% 3.00%    
Lessee, Lease, Description [Line Items]        
Weighted average remaining lease term, excluding Chicago office space (in years) 5 years 3 months 18 days      
Chicago office space        
Lessee, Lease, Description [Line Items]        
Lease term (in years)       15 years