Provision for income tax expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Continuing operations	$ 1,530	$ 10,281	$ 3,207
Comprehensive income	(515)	(209)	(92)
Total tax expense	$ 1,015	$ 10,072	$ 3,115