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Income Taxes - Schedule of temporary difference, unused tax losses and unused tax credits (Details) - USD ($) | 12 Months Ended |
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Mar. 31, 2021 | Mar. 31, 2020
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | $ 104,016,000 | $ 119,464,000
Intangible asset [Member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | $ 6,209,000 | 0
Expiry Date Range | 2020 - 2039 |
Share issue costs and other [Member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | $ 5,162,000 | 8,758,000
Expiry Date Range | 2041 - 2045 |
Loss carryforwards [Member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | $ 75,393,000 | 87,023,000
Expiry Date Range | 2025 - Indefinite |
Digital currencies [Member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | $ 0 | 9,434,000
Intercompany loan [Member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | 12,884,000 | 0
Data centre equipment [Member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences, unused tax losses and unused tax credits not included in deferred tax assets/liabilities | $ 4,368,000 | $ 14,249,000

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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_e&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The description of the expiry date (if any) of deductible temporary differences, unused tax losses and unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_e&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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