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Income Taxes - Non-Capital Losses Available to Reduce Future Years Taxable Income (Details) $ in Thousands | 12 Months Ended
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Mar. 31, 2018 CAD ($)
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Non-capital losses | $ 171,397
2030 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2030
Non-capital losses | $ 40
2031 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2031
Non-capital losses | $ 123
2032 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2032
Non-capital losses | $ 376
2033 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2033
Non-capital losses | $ 3,195
2034 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2034
Non-capital losses | $ 7,258
2035 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2035
Non-capital losses | $ 18,196
2036 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2036
Non-capital losses | $ 29,806
2037 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2037
Non-capital losses | $ 29,202
2038 |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | 2038
Non-capital losses | $ 79,301
Foreign- Indefinite |
Non Capital Losses Available To Reduce Future Taxable Income [Line Items] |
Expiration dates | Foreign - indefinite
Non-capital losses | $ 3,900

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