Redeemable noncontrolling interest (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount	$ 21,867	$ 13,543	$ 13,611
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest	2,586	2,377
Temporary Equity, Interest in Subsidiary Earnings	(106)	(1,505)
Temporary Equity, Accretion to Redemption Value	(5,844)	$ (940)
2020	85
2021	85
Finite-Lived Intangible Assets, Amortization Expense, Year Three	85
Finite-Lived Intangible Assets, Amortization Expense, Year Four	85
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 85