XML 86 R75.htm IDEA: XBRL DOCUMENT
v3.23.2

Commitments and Contingencies - Schedule of Additional Information on Unecumbered Unfunded Commitments (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Commitments And Contingencies [Line Items] |  |  |
Total Unfunded Debt Commitments | [1],[2] | $ 381,104 | $ 628,874
Debt Investments |  |  |
Commitments And Contingencies [Line Items] |  |  |
2023 |  | 187,230 | 461,296
2024 |  | 156,056 | 134,856
2025 |  | 1,294 | 720
2026 |  | 9,037 | 9,038
2027 |  | 15,152 | 15,171
2028 |  | 5,318 | 2,140
2030 |  | 2,000 | 0
Total Unfunded Debt Commitments | [1] | 376,087 | 623,221
Investment Funds And Vehicles |  |  |
Commitments And Contingencies [Line Items] |  |  |
2030 |  | 2,269 | 2,842
2032 |  | 2,748 | 2,811
Total Unfunded Debt Commitments |  | $ 5,017 | $ 5,653
[1] | For debt investments, amounts represent unfunded commitments, including undrawn revolving facilities, which are available at the request of the portfolio company. Amount excludes unfunded commitments which are unavailable due to the borrower having not met certain milestones. These amounts also exclude $127.9 million and $173.5 million of unfunded commitments as of June 30, 2023, and December 31, 2022, respectively, to portfolio companies related to loans assigned to or directly committed by the Adviser Funds as described in “Note -12 Related Party Transactions”.
[2] | For investment funds and vehicles, the amount represents uncalled capital commitments in private equity funds.

X
- Definition Commitments and contingencies. + References No definition available. + Details
Name: | htgc_CommitmentsAndContingenciesLineItems
Namespace Prefix: | htgc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unfunded commitments due in eighth year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInEighthYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in fifth year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInFifthYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in fourth year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInFourthYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in remainder of fiscal year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInRemainderOfFiscalYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in second year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInSecondYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in sixth year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInSixthYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in tenth year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInTenthYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unfunded commitments due in third year. + References No definition available. + Details
Name: | htgc_UnfundedCommitmentsDueInThirdYear
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of financial support committed by investment company to investee that is contractually required but not provided. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480990/946-20-50-16 + Details
Name: | us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentTypeAxis=htgc_DebtInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=htgc_InvestmentFundsAndVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |