Annual report pursuant to Section 13 and 15(d)

LEASES - Narrative (Details)

v3.22.0.1
LEASES - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2021
USD ($)
property
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Lessee, Lease, Description [Line Items]      
Number of properties subject to non-cancelable leasehold interest agreements | property 8    
Real estate leasehold interests      
Lessee, Lease, Description [Line Items]      
Rent expense $ 1.7 $ 1.8 $ 1.6
Real estate leasehold interests | Minimum      
Lessee, Lease, Description [Line Items]      
Remaining lease terms (in years) 13 years    
Real estate leasehold interests | Maximum      
Lessee, Lease, Description [Line Items]      
Remaining lease terms (in years) 71 years    
Office leases      
Lessee, Lease, Description [Line Items]      
Rent expense $ 0.4 $ 0.4 $ 0.3
Office leases | Minimum      
Lessee, Lease, Description [Line Items]      
Remaining lease terms (in years) 1 year    
Office leases | Maximum      
Lessee, Lease, Description [Line Items]      
Remaining lease terms (in years) 7 years