Reconciliation of Statutory Canadian Tax rate to Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Effective Tax Rate Reconciliation [Line Items]
Income Tax Provision (benefit)	$ 5,841	$ 3,882	$ 4,993
Canada Revenue Agency
Schedule Of Effective Tax Rate Reconciliation [Line Items]
Statutory Canadian tax rate	29.00%	29.00%	29.00%
Expected income tax provision at Canadian statutory tax rate	$ 16,291	$ 14,037	$ 13,272
International tax rate differences	(3,621)	(3,483)	(3,346)
U.S. state income taxes, net	(249)	(108)	386
Withholding and other taxes	429	485	364
Permanent differences and other	921	259	443
Disallowed compensation	1,111	685
Foreign-derived intangible income	(1,211)	(1,063)	(787)
Tax credits	(1,408)	(2,016)	(1,457)
Statutory tax rate changes	489	429	35
Uncertain tax positions	(472)	(176)	310
Change in valuation allowance	918	(727)	(482)
Acquisition contingent consideration adjustments	87	(1,513)	287
Transaction costs	248	(23)	247
Provision to return differences	33	750	(516)
Windfall benefit from share-based compensation	(5,131)	(2,322)	(1,717)
UK patent box	(2,594)	(1,332)	(2,046)
Income Tax Provision (benefit)	$ 5,841	$ 3,882	$ 4,993
Effective tax rate	10.40%	8.00%	10.90%