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Subsequent Events (Additional Information) (Details) - Subsequent Events - USD ($) $ in Millions | Aug. 04, 2022 | Jul. 13, 2022
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Roche Agreement |  |
Subsequent Event [Line Items] |  |
Upfront payment |  | $ 125.0
Roche Agreement | Research, Development and Regulatory Milestones |  |
Subsequent Event [Line Items] |  |
Milestones payments |  | $ 1,172.0
Sales Agreement | Maximum | Common Shares |  |
Subsequent Event [Line Items] |  |
Aggregate offering price | $ 125.0 |

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- Definition Aggregate offering price + References No definition available. + Details
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Namespace Prefix: | rptx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Milestones payments. + References No definition available. + Details
Name: | rptx_MilestonesPayments
Namespace Prefix: | rptx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Upfront payment. + References No definition available. + Details
Name: | rptx_UpfrontPayment
Namespace Prefix: | rptx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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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Namespace Prefix: |
Data Type: | na
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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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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