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LEASES - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2018
Lessee, Lease, Description [Line Items]    
Lease termination period 1 year  
Leases rent expense   $ 32.1
Lease not yet commenced, right-of-use asset $ 37.9  
Lease not yet commenced, liability $ 37.9  
Minimum    
Lessee, Lease, Description [Line Items]    
Lease terms 1 year  
Lease renewal term 1 year  
Lease not yet commenced, term of contract 3 years  
Maximum    
Lessee, Lease, Description [Line Items]    
Lease terms 16 years  
Lease renewal term 6 years  
Lease not yet commenced, term of contract 11 years