SEGMENT REPORTING - Schedule of Non-current Assets Excluding Deferred Tax Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Non-current assets, excluding deferred tax assets	$ 93,170	$ 95,635
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Non-current assets, excluding deferred tax assets	34,704	34,912
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Non-current assets, excluding deferred tax assets	$ 58,466	$ 60,723