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Subsequent Events (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2021
Jan. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2020
Subsequent Event [Line Items]          
Shares issued during the period (in shares)   6,900,000      
Value of shares issued in public or private offering (estimated)   $ 82,374 $ 6,611 $ 87,990  
Discontinued Operations, Disposed of by Means Other than Sale, Abandonment | MBP Titan          
Subsequent Event [Line Items]          
Right-of-use assets     $ 13,425   $ 9,131
Lease liability         $ 13,428
Subsequent Event          
Subsequent Event [Line Items]          
Shares issued during the period (in shares) 17,250,000        
Value of shares issued in public or private offering (estimated) $ 121,200