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Financial Instruments - Summary of Valuation Techniques and Key Inputs Used in Fair Value Measurement of Level 2 Financial Instruments (Details) - Level 2 | 12 Months Ended
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Mar. 31, 2018
AusCann Shares |
Disclosure Of Financial Instruments [Line Items] |
Valuation techniques and key inputs | Put option pricing model
Key inputs | Quoted prices in active market
AusCann Options |
Disclosure Of Financial Instruments [Line Items] |
Valuation techniques and key inputs | Black-Scholes option pricing model
Key inputs | Quoted prices in active market
TerrAscend Warrants |
Disclosure Of Financial Instruments [Line Items] |
Valuation techniques and key inputs | Black-Scholes option pricing model
Key inputs | Quoted prices in active market

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