Hercules Capital, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Related Party Transactions - Schedule of Related Party Transactions (Details)

Related Party Transactions - Schedule of Related Party Transactions (Details) - Adviser Funds - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Related Party Transaction [Line Items]
Investment commitments assigned to or directly committed by the Adviser Funds	$ 444.3	$ 235.8
Investment commitments sold to Adviser Funds	44.2	0.0
Investment fundings assigned to, directly originated or funded by the Adviser Funds	179.6	124.1
Amounts received by the Company from the Adviser Funds relating to assigned investments	$ 2.5	$ 0.0

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details