Hercules Capital, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Investments - Narrative (Details)

Investments - Narrative (Details)	Mar. 31, 2024 equityInvestment Firm	Dec. 31, 2023 Firm equityInvestment
Schedule Of Investments [Line Items]
Percentage of fair value investment in portfolio companies	29.90%	29.70%
Count greater five percent fair value equity \| equityInvestment	4	5
Percentage of equity investments held in portfolio companies	48.40%	56.50%
Concentrations of Credit Risk
Schedule Of Investments [Line Items]
Number of portfolio companies \| Firm	6	5

- 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