Annual report pursuant to Section 13 and 15(d)

Fair Value of Financial Instruments (Details)

v3.20.1
Fair Value of Financial Instruments (Details) - Significant Other Observable Inputs (Level 2) [Member]
Feb. 29, 2020
$ / shares
Feb. 28, 2019
$ / shares
Jun. 27, 2019
$ / shares
Warrant [Member] | New Tranche A Warrants [Member] | Exercise price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share $ 50.40   $ 50.40
Warrant [Member] | New Tranche A Warrants [Member] | Valuation date stock price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share $ 25.17   $ 53.36
Warrant [Member] | New Tranche A Warrants [Member] | Remaining term [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, term 3 years 8 months 12 days   4 years 3 months 18 days
Warrant [Member] | New Tranche A Warrants [Member] | Expected volatility [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.700   0.667
Warrant [Member] | New Tranche A Warrants [Member] | Risk-free interest rate [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.011   0.014
Warrant [Member] | New Tranche A Warrants [Member] | Expected dividend yield [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.000   0.000
Warrant [Member] | New Tranche B Warrants [Member] | Exercise price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share $ 76.68   $ 76.68
Warrant [Member] | New Tranche B Warrants [Member] | Valuation date stock price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share $ 25.17   $ 53.36
Warrant [Member] | New Tranche B Warrants [Member] | Remaining term [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, term 6 years 8 months 12 days   7 years 3 months 18 days
Warrant [Member] | New Tranche B Warrants [Member] | Expected volatility [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.700   0.667
Warrant [Member] | New Tranche B Warrants [Member] | Risk-free interest rate [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.011   0.014
Warrant [Member] | New Tranche B Warrants [Member] | Expected dividend yield [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.000   0.000
Warrant [Member] | November 2017 Canopy Warrants [Member] | Exercise price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share $ 12.98 $ 12.98  
Warrant [Member] | November 2017 Canopy Warrants [Member] | Valuation date stock price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share $ 25.17 $ 62.38  
Warrant [Member] | November 2017 Canopy Warrants [Member] | Remaining term [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, term 2 months 12 days 1 year 2 months 12 days  
Warrant [Member] | November 2017 Canopy Warrants [Member] | Expected volatility [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 1.053 0.878  
Warrant [Member] | November 2017 Canopy Warrants [Member] | Risk-free interest rate [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.015 0.018  
Warrant [Member] | November 2017 Canopy Warrants [Member] | Expected dividend yield [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal 0.000 0.000  
Warrant [Member] | November 2018 Canopy Warrants [Member] | Exercise price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share   $ 50.40  
Warrant [Member] | November 2018 Canopy Warrants [Member] | Valuation date stock price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, C$ per share   $ 62.38  
Warrant [Member] | November 2018 Canopy Warrants [Member] | Remaining term [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, term   2 years 8 months 12 days  
Warrant [Member] | November 2018 Canopy Warrants [Member] | Expected volatility [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal   0.793  
Warrant [Member] | November 2018 Canopy Warrants [Member] | Risk-free interest rate [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal   0.018  
Warrant [Member] | November 2018 Canopy Warrants [Member] | Expected dividend yield [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrants outstanding, measurement input, decimal   0.000  
Convertible debt securities [Member] | Valuation date stock price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt instrument, measurement input, C$ per share $ 25.17 $ 62.38  
Convertible debt securities [Member] | Remaining term [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, term 3 years 4 months 24 days 4 years 4 months 24 days  
Convertible debt securities [Member] | Expected volatility [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt instrument, measurement input, decimal 0.582 0.459  
Convertible debt securities [Member] | Risk-free interest rate [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt instrument, measurement input, decimal 0.011 0.018  
Convertible debt securities [Member] | Expected dividend yield [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt instrument, measurement input, decimal 0.000 0.000  
Convertible debt securities [Member] | Conversion price [Member]      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt instrument, measurement input, C$ per share $ 48.17 $ 48.17