Share Capital - Schedule of Common Stock Outstanding Roll Forward (Detail) - shares		9 Months Ended
	Sep. 01, 2021	Sep. 30, 2021
Class of Stock [Line Items]
Issuance of shares for redemption of noncontrolling interests	136,075
Subordinate Voting Shares [member]
Class of Stock [Line Items]
Beginning balance		178,113,221
Issuance of registered shares pursuant to S-1		4,693,991
Issuance of shares under business combinations and investments		7,290,180
Distribution of Contingent Consideration		612,737
Distribution of deferred shares		190,263
Issuance of shares for redemption of noncontrolling interests		136,075
Issuance of shares upon exercise of options and warrants		977,646
Issuances of shares upon vesting of RSUs		357,756
Shares issued in association with notes payable		8,514
Shares issued for settlement of business dispute		240,000
Exchange of shares		1,763,500
Ending balance		194,383,883
Multiple Voting Shares [member]
Class of Stock [Line Items]
Beginning balance		40,289
Issuance of shares under business combinations and investments		0
Distribution of Contingent Consideration		0
Distribution of deferred shares		0
Issuance of shares upon exercise of options and warrants		0
Issuances of shares upon vesting of RSUs		0
Shares issued for settlement of business dispute		0
Exchange of shares		(635)
Ending balance		39,654
Super Voting Shares [member]
Class of Stock [Line Items]
Beginning balance		312,031
Issuance of shares under business combinations and investments		0
Distribution of Contingent Consideration		0
Distribution of deferred shares		0
Issuance of shares upon exercise of options and warrants		0
Issuances of shares upon vesting of RSUs		0
Shares issued for settlement of business dispute		0
Exchange of shares		(17,000)
Ending balance		295,031