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Capitalization - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2019
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Warrants            
Net consideration received on transaction     $ 5,400   $ 19,000  
Number of shares issued in transaction (in shares)   0 106,309 0 368,514  
Issuance of common stock related to acquisition     $ 42,869   $ 42,869  
Common stock, authorized shares (in shares)   250,000,000   250,000,000   125,000,000
Maximum            
Warrants            
Net consideration received on transaction $ 125,000          
Value of remaining shares available to be issued and sold in transaction   $ 93,000   $ 93,000    
Weighted Average            
Warrants            
Sale of stock, weighted average price per share (in USD per share)     $ 53.08   $ 52.89