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Leases - Narratives (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Lessee, Lease, Description        
Operating lease, renewal term     10 years  
Operating lease, right-of-use asset     $ 2,320 $ 16,388
Operating lease liability     8,984 17,459
Impairment of right-of-use assets   $ 7,400 7,434  
Payment to terminate lease $ 1,000      
Gain on lease termination $ 600   576 0
Rent expense     $ 1,600 $ 2,900
GRIC        
Lessee, Lease, Description        
Operating lease, remaining lease term     15 years  
Operating lease, renewal term     7 years  
Adjustment        
Lessee, Lease, Description        
Operating lease, right-of-use asset   6,200    
Operating lease liability   $ 6,200    
Minimum        
Lessee, Lease, Description        
Operating lease, remaining lease term     1 year  
Maximum        
Lessee, Lease, Description        
Operating lease, remaining lease term     15 years