XML 44 R30.htm IDEA: XBRL DOCUMENT v3.23.2
Investments in marketable securities - Narrative (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
numberOfSegments
Jun. 30, 2023
USD ($)
numberOfSegments
Jun. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
numberOfSegments
Investments, Debt and Equity Securities [Abstract]        
Debt securities, available-for-sale, unrealized loss Position, number of positions | numberOfSegments 45 45   53
Accrued investment income receivable $ 600 $ 600   $ 600
Realized gains or losses $ 100 $ 100 $ 0