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Subsequent events (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Dec. 09, 2021 | Nov. 30, 2021 | Nov. 30, 2020
Subsequent Event [Line Items] |  |  |
Proceeds from Contributions from Affiliates |  |  | $ 31.0
RSUs |  |  |
Subsequent Event [Line Items] |  |  |
Granted |  | 0 |
Subsequent Event | Stock option | Director |  |  |
Subsequent Event [Line Items] |  |  |
Granted (in shares) | 350,000 |  |
Subsequent Event | Stock option | Employee |  |  |
Subsequent Event [Line Items] |  |  |
Granted (in shares) | 1,734,500 |  |
Vested immediately (in shares) | 578,166 |  |
Subsequent Event | RSUs | Employee |  |  |
Subsequent Event [Line Items] |  |  |
Vested immediately (in shares) | 391,332 |  |
Granted | 648,600 |  |
Outstanding grants | 257,268 |  |
Subsequent Event | DSUs. | Director |  |  |
Subsequent Event [Line Items] |  |  |
Granted | 144,200 |  |

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- Definition The cash inflow from an entity that is affiliated with the entity by means of direct or indirect ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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Balance Type: | debit
Period Type: | duration

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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Balance Type: | na
Period Type: | instant

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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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- Details
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