Post-effective amendment to a registration statement that is not immediately effective upon filing

LEASES - Narrative (Details)

v3.21.1
LEASES - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Jun. 25, 2020
Dec. 31, 2019
Dec. 31, 2018
Jan. 01, 2021
Jun. 26, 2020
Lessee, Lease, Description [Line Items]                
Operating lease right-of-use assets $ 18,749   $ 12,193   $ 0     $ 15,200
Operating lease, lease liabilities 21,355   14,947         $ 15,200
Lease expense 1,100 $ 1,100 2,300 $ 2,200 5,200 $ 3,700    
Sublease income $ 200 $ 100 $ 300 $ 300 $ 500 $ 400    
Weighted-average remaining lease term (in years) 4 years 4 months 24 days   4 years 7 months 6 days          
Weighted-average discount rate (as a percent) 3.57%   3.42%          
Operating lease payments $ 1,200   $ 1,700          
Accounting Standards Update 2016-02                
Lessee, Lease, Description [Line Items]                
Operating lease right-of-use assets             $ 7,600  
Operating lease, lease liabilities             $ 7,600