Quarterly report pursuant to Section 13 or 15(d)

Goodwill and intangible assets - Additional information (Details)

v3.22.2.2
Goodwill and intangible assets - Additional information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]          
Goodwill $ 18,614,000   $ 18,614,000   $ 18,614,000
Goodwill, accumulated impairment loss 0   0   0
Goodwill, impairment expense     0   $ 0
Amortization expense $ 400,000 $ 1,200,000 400,000 $ 1,200,000  
Impairment of intangible assets     $ 0    
Weighted Average          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful lives of intangible assets     8 years 10 months 24 days