Hercules Capital, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Investments - Additional Information (Details)

Investments - Additional Information (Details)	Dec. 31, 2023 equityInvestment Firm	Dec. 31, 2022 equityInvestment Firm
Schedule Of Investments [Line Items]
Percentage of fair value investment in portfolio companies	29.70%	29.00%
Count greater five percent fair value equity \| equityInvestment	5	4
Percentage of equity investments held in portfolio companies	56.50%	39.80%
Concentrations of Credit Risk
Schedule Of Investments [Line Items]
Number of portfolio companies \| Firm	5	8

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details