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Commitments and Contingencies (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
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Commitments and Contingencies [Abstract] |  |
Unfunded commitments | $ 30.0 | $ 20.1

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Namespace Prefix: | psbd_
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