Business Segments - Long-Lived Assets By Geographical Location (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information
Long-Lived assets	$ 58,222	$ 62,085
United States
Segment Reporting Information
Long-Lived assets	53,527	57,445
Canada
Segment Reporting Information
Long-Lived assets	2,597	3,011
United Kingdom
Segment Reporting Information
Long-Lived assets	1,668	1,617
Other
Segment Reporting Information
Long-Lived assets	$ 430	$ 12