Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings (Loss) Per Share (Details) - CAD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic (loss) earnings per share computation
Net (loss) income attributable to common shareholders of Canopy Growth	$ (221,806)	$ (11,058)	$ (2,304,954)	$ 381,360
Weighted average number of common shares outstanding	471,592,150	393,274,758	435,229,653	388,696,975
Basic (loss) earnings per share	$ (0.47)	$ (0.03)	$ (5.30)	$ 0.98
Diluted (loss) earnings per share computation
Net (loss) income used in the computation of basic (loss) earnings per share	$ (221,806)	$ (11,058)	$ (2,304,954)	$ 381,360
Adjustment to net loss attributable to noncontrolling interests and redeemable noncontrolling interest				(8,323)
Removal of fair value changes on unsecured senior notes				(80,736)
Adjustment to interest expense on Supreme Cannabis convertible debentures				667
Net (loss) income used in the computation of diluted (loss) earnings per share	$ (221,806)	$ (11,058)	$ (2,304,954)	$ 292,968
Weighted average number of common shares outstanding	471,592,150	393,274,758	435,229,653	388,696,975
Dilutive impact of assumed exercise or conversion of:
Diluted weighted average common shares outstanding	471,592,150	393,274,758	435,229,653	409,158,915
Diluted (loss) earnings per share	$ (0.47)	$ (0.03)	$ (5.30)	$ 0.72
Unsecured Senior Notes [Member]
Dilutive impact of assumed exercise or conversion of:
Diluted weighted average common shares outstanding				12,454,620
Redeemable Noncontrolling Interest [Member]
Dilutive impact of assumed exercise or conversion of:
Diluted weighted average common shares outstanding				3,501,512
Stock Option 1 [Member]
Dilutive impact of assumed exercise or conversion of:
Diluted weighted average common shares outstanding				923,961
Other Securities [Member]
Dilutive impact of assumed exercise or conversion of:
Diluted weighted average common shares outstanding				3,581,847