Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Principal components on income tax expense:
Current taxes	$ 9,049	$ 7,612	$ 4,728
Deferred taxes	(90)	(817)	354
Income tax expense	$ 8,959	$ 6,795	$ 5,082