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Debt - Line of credit (Details) - Revolving Line of Credit - USD ($)
$ in Millions
Nov. 05, 2021
Apr. 05, 2021
Debt Instrument [Line Items]    
Aggregate amount   $ 5.0
Fees on daily unused portion   0.25%
Outstanding borrowings   $ 3.9
Repayment of debt $ 4.0  
Prime rate    
Debt Instrument [Line Items]    
Basis spread on interest rate   0.00%