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Fair Value Measurements - Additional Information (Details) | Jun. 30, 2021 USD ($)
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Fair Value Disclosures [Abstract] |
Fair value, assets, transfers between levels | $ 0

X
- Definition Fair value, assets, transfers between all levels. + References No definition available. + Details
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Namespace Prefix: | rptx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration