Business Segment Information - Summary of Revenues Attributed to a Geographic Region Based on the Location of the Customer (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 30, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Revenues	$ 56,560	$ 51,406	$ 50,414	$ 52,102	$ 46,936	$ 51,101	$ 45,904	$ 23,038	$ 210,482	$ 166,979	$ 43,130
CANADA [Member]
Segment Reporting Information [Line Items]
Revenues									120,581	130,291	40,209
UNITED STATES [Member]
Segment Reporting Information [Line Items]
Revenues									53,782	23,516
Other Countries [Member]
Segment Reporting Information [Line Items]
Revenues									$ 36,119	$ 13,172	$ 2,921