Disaggregation of revenue - Summary of Disaggregation of Revenue by Product Vertical (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 459,072	$ 645,274	$ 584,814
Property & casualty insurance
Disaggregation of Revenue [Line Items]
Revenue	224,366	417,715	397,710
Health insurance
Disaggregation of Revenue [Line Items]
Revenue	187,392	176,459	139,796
Life insurance
Disaggregation of Revenue [Line Items]
Revenue	26,711	28,586	30,313
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 20,603	$ 22,514	$ 16,995