XML 79 R60.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Investments - Schedule of Loan Exit Fees Receivable (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Exit Fees Receivable | $ 42.2 | $ 40.2
Included within debt investment cost |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Exit Fees Receivable | 39.2 | 35.9
Deferred receivable related to expired commitments |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Exit Fees Receivable | $ 3.0 | $ 4.3

X
- Definition Exit fees receivable. + References No definition available. + Details
Name: | htgc_ExitFeesReceivables
Namespace Prefix: | htgc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=htgc_IncludedInCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=htgc_DeferredFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |