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Industry, Geographic, and Revenue Disaggregation - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Segment Reporting [Abstract]      
Number of operating segments | segment 1    
Concentration Risk [Line Items]      
Trade accounts receivable $ 2,320 $ 1,550  
Lease income $ 1,900 $ 3,600 $ 1,300
Geographic Concentration | Outside the U.S. | Total Revenue      
Concentration Risk [Line Items]      
Risk concentration 14.00% 8.00% 28.00%
Geographic Concentration | Outside the U.S. | Accounts Receivable      
Concentration Risk [Line Items]      
Trade accounts receivable $ 700 $ 300