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v3.25.2

Consolidated Statements of Operations (Parenthetical) (Unaudited) | 6 Months Ended
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Jun. 30, 2024 USD ($)
Income Statement [Abstract] |
Change in Unrealized Appreciation | $ 21,347,357

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- Definition Change in unrealized appreciation + References No definition available. + Details
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Namespace Prefix: | tcpc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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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