Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Narrative (Details)

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Significant Accounting Policies - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Equity method investment, impairment charge $ 0 $ 0  
Impairment of goodwill 0 0  
Amortization of capitalized selling and marketing costs 2,000,000 1,600,000 $ 1,900,000
Marketing and advertising Expense $ 3,200,000 2,400,000 $ 2,500,000
Warranty term (in years) 10 years    
Warrants outstanding, term (in years) 5 years    
Deferred revenue $ 3,969,000 0  
Deposit contracts, assets 6,100,000    
Remaining performance obligation, amount $ 63,900,000 $ 0  
Warrant      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Exercise price of warrants (in dollars per share) $ 11.50