Segment Information - Reportable Segments by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 351,591	$ 370,785
Long-lived assets	78,575	61,327
United States
Segment Reporting Information [Line Items]
Revenue	283,261	295,675
Long-lived assets	44,395	25,478
Canada
Segment Reporting Information [Line Items]
Revenue	68,330	75,110
Long-lived assets	$ 34,180	$ 35,849