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Deferred tax reconciliation (Details 5) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |
Change in net deferred income tax liability from the preceding table | $ 39,341 |  |
Deferred taxes associated with other comprehensive loss | (3,507) |  |
Excess deferred income tax amortization | (9,008) |  |
Other | (3,500) |  |
Deferred income taxes | $ 23,326 | $ 60,250 | $ (1,801)

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