Consolidated Statements of Loss and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2019
Income Statement [Abstract]
Net revenue	$ 513,085	$ 405,326	$ 179,303
Cost of goods sold	389,903	309,273	135,792
Gross profit	123,182	96,053	43,511
Operating expenses:
General and administrative	111,575	93,789	75,841
Selling	26,576	18,975	3,752
Amortization	35,221	15,138	9,550
Marketing and promotion	17,539	15,266	17,400
Research and development	830	1,916	1,052
Impairment		50,679	57,259
Transaction costs	63,612	4,299	17,588
Total operating expenses	255,353	200,062	182,442
Operating loss	(132,171)	(104,009)	(138,931)
Finance income (expense), net	(27,977)	(19,371)	5,259
Non-operating (expense) income, net	(184,838)	14,195	95,534
(Loss) income before income taxes	(344,986)	(109,185)	(38,138)
Income taxes (recovery)	(8,972)	(8,352)	(2,045)
Net (loss) income	(336,014)	(100,833)	(36,093)
Total net income (loss) attributable to:
Shareholders of Tilray Inc.	(367,421)	(102,540)	(25,037)
Non-controlling interests	31,407	1,707	(11,056)
Other comprehensive (loss) income, net of tax
Foreign currency translation (loss) gain	156,649	(858)	(90)
Unrealized loss on convertible notes receivables	(3,824)	(5,476)	(2,570)
Total other comprehensive (loss) income, net of tax	152,825	(6,334)	(2,660)
Comprehensive (loss) income	(183,189)	(107,167)	(38,753)
Total comprehensive income (loss) attributable to:
Shareholders of Tilray Inc.	(214,596)	(108,874)	(27,697)
Non-controlling interests	$ 31,407	$ 1,707	$ (11,056)
Weighted average number of common shares - basic	269,549,852	216,158,217	203,460,138
Weighted average number of common shares - diluted	269,549,852	216,158,217	203,460,138
Earnings (Loss) per share - basic	$ (1.25)	$ (0.47)	$ (0.18)
Earnings (Loss) per share - diluted	$ (1.25)	$ (0.47)	$ (0.18)