Basis of Presentation - Schedule of Effect of Restatement Items on Consolidated Statement of Operations and Comprehensive Loss (Details) - CAD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue	$ 116,167	$ 117,914	$ 118,667	$ 236,581	$ 352,748	$ 450,901	$ 572,214	$ 607,198
Net revenue	104,031	105,418	105,920	211,338	315,369	402,904	510,321	546,649
Cost of goods sold	104,126	113,373	111,506	224,879	329,005	507,044	713,457	479,689
Gross margin	(95)	(7,955)	(5,586)	(13,541)	(13,636)	(104,140)	(203,136)	66,960
Operating loss	(151,418)	(249,747)	(1,842,423)	(2,092,170)	(2,243,588)	(2,848,295)	(1,092,756)	(1,243,456)
Loss before income taxes	(264,758)	(297,591)	(2,088,001)	(2,385,592)	(2,650,350)	(3,314,320)	(339,515)	(1,683,961)
Net loss	(264,376)	(305,811)	(2,091,750)	(2,397,561)	(2,661,937)	(3,309,546)	(330,567)	(1,670,820)
Net (loss) income attributable to noncontrolling interests and redeemable noncontrolling interest	(4,911)	(13,641)	(5,307)	(18,948)	(23,859)	(31,388)	(20,524)	74,100
Net loss attributable to Canopy Growth Corporation	$ (259,465)	$ (292,170)	$ (2,086,443)	$ (2,378,613)	$ (2,638,078)	$ (3,278,158)	$ (310,043)	$ (1,744,920)
Basic loss per share	$ (0.53)	$ (0.62)	$ (5.24)	$ (5.47)	$ (5.82)	$ (7.07)	$ (0.79)	$ (4.69)
Diluted loss per share	$ (0.53)	$ (0.62)	$ (5.24)	$ (5.47)	$ (5.82)	$ (7.07)	$ (0.79)	$ (4.69)
Basic weighted average common shares outstanding						463,724,414	391,324,285	371,662,296
Diluted weighted average common shares outstanding						463,724,414	391,324,285	371,662,296
Comprehensive loss:
Comprehensive loss	$ (244,917)	$ (295,547)	$ (2,063,932)	$ (2,359,479)	$ (2,604,396)	$ (3,251,617)	$ (354,739)	$ (1,925,959)
Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interest	(4,911)	(13,641)	(5,307)	(18,948)	(23,859)	(31,388)	(20,524)	74,100
Comprehensive loss attributable to Canopy Growth Corporation	(240,006)	(281,906)	(2,058,625)	(2,340,531)	(2,580,537)	$ (3,220,229)	(334,215)	$ (2,000,059)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue	113,349	130,359	122,862	253,221	366,570		582,218
Net revenue	101,213	117,863	110,115	227,978	329,191		520,325
Cost of goods sold	103,654	114,042	111,507	225,549	329,203		713,379
Gross margin	(2,441)	3,821	(1,392)	2,429	(12)		(193,054)
Operating loss	(153,764)	(175,847)	(1,838,229)	(2,014,076)	(2,167,840)		(1,082,674)
Loss before income taxes	(267,104)	(223,691)	(2,083,807)	(2,307,498)	(2,574,602)		(329,433)
Net loss	(266,722)	(231,911)	(2,087,556)	(2,319,467)	(2,586,189)		(320,485)
Net (loss) income attributable to noncontrolling interests and redeemable noncontrolling interest	(5,139)	(10,105)	(4,408)	(14,513)	(19,652)		(18,304)
Net loss attributable to Canopy Growth Corporation	$ (261,583)	$ (221,806)	$ (2,083,148)	$ (2,304,954)	$ (2,566,537)		$ (302,181)
Basic loss per share	$ (0.54)	$ (0.47)	$ (5.23)	$ (5.30)	$ (5.66)		$ (0.77)
Diluted loss per share	$ (0.54)	$ (0.47)	$ (5.23)	$ (5.30)	$ (5.66)		$ (0.77)
Basic weighted average common shares outstanding							391,324,285
Diluted weighted average common shares outstanding							391,324,285
Comprehensive loss:
Comprehensive loss	$ (247,263)	$ (221,647)	$ (2,059,738)	$ (2,281,385)	$ (2,528,648)		$ (344,657)
Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interest	(5,139)	(10,105)	(4,408)	(14,513)	(19,652)		(18,304)
Comprehensive loss attributable to Canopy Growth Corporation	(242,124)	(211,542)	(2,055,330)	(2,266,872)	(2,508,996)		(326,353)
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue	2,818	(12,445)	(4,195)	(16,640)	(13,822)		(10,004)
Net revenue	2,818	(12,445)	(4,195)	(16,640)	(13,822)		(10,004)
Cost of goods sold	472	(669)	(1)	(670)	(198)		78
Gross margin	2,346	(11,776)	(4,194)	(15,970)	(13,624)		(10,082)
Operating loss	2,346	(73,900)	(4,194)	(78,094)	(75,748)		(10,082)
Loss before income taxes	2,346	(73,900)	(4,194)	(78,094)	(75,748)		(10,082)
Net loss	2,346	(73,900)	(4,194)	(78,094)	(75,748)		(10,082)
Net (loss) income attributable to noncontrolling interests and redeemable noncontrolling interest	228	(3,536)	(899)	(4,435)	(4,207)		(2,220)
Net loss attributable to Canopy Growth Corporation	$ 2,118	$ (70,364)	$ (3,295)	$ (73,659)	$ (71,541)		$ (7,862)
Basic loss per share	$ 0.01	$ (0.15)	$ (0.01)	$ (0.17)	$ (0.16)		$ (0.02)
Diluted loss per share	$ 0.01	$ (0.15)	$ (0.01)	$ (0.17)	$ (0.16)		$ (0.02)
Comprehensive loss:
Comprehensive loss	$ 2,346	$ (73,900)	$ (4,194)	$ (78,094)	$ (75,748)		$ (10,082)
Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interest	228	(3,536)	(899)	(4,435)	(4,207)		(2,220)
Comprehensive loss attributable to Canopy Growth Corporation	$ 2,118	$ (70,364)	$ (3,295)	$ (73,659)	$ (71,541)		$ (7,862)