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Leases - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Lessee, Lease, Description [Line Items]        
Lease expense included in selling, general and administrative expenses $ 0.4 $ 0.4 $ 0.8 $ 0.8
Weighted average remaining lease term for operating leases 6 years 4 months 24 days   6 years 4 months 24 days  
Weighted average discount rate for operating lease (as percent) 6.30%   6.30%  
Cash payments for operating lease expense $ 0.0 $ 0.6 $ 0.6 $ 1.2
Accounts payable        
Lessee, Lease, Description [Line Items]        
Cash payments for operating lease expense     $ 0.6  
Minimum        
Lessee, Lease, Description [Line Items]        
Remaining lease term 2 years   2 years  
Maximum        
Lessee, Lease, Description [Line Items]        
Remaining lease term 8 years   8 years