XML 88 R76.htm IDEA: XBRL DOCUMENT
v3.23.1

Subsequent Events - Additional Information (Details) - $ / shares |  |  |  |  | 14 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 23, 2023 | May 16, 2023 | Apr. 27, 2023 | Feb. 09, 2023 | Apr. 27, 2023 | Mar. 31, 2023 | Mar. 31, 2022 | Mar. 09, 2022
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Cash distribution, per share |  |  |  |  |  |  |  | $ 0.08
Quarterly distribution, per share |  |  |  |  |  |  |  | $ 0.08
Share price |  |  |  |  |  | $ 12.89 | $ 18.07 |
Supplemental Dividend |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Supplemental Dividends Declared to Date |  |  |  | $ 0.32 |  |  |  |
Subsequent Event [Member] | Base Dividend |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Dividends payable, date to be paid | May 23, 2023 |  |  |  |  |  |  |
Cash distribution, per share | $ 0.39 |  |  |  |  |  |  |
Quarterly distribution, per share | $ 0.39 |  |  |  |  |  |  |
Dividends payable, date of record |  | May 16, 2023 |  |  |  |  |  |
Subsequent Event [Member] | Supplemental Dividend |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Dividends payable, date declared |  |  |  |  | Feb. 09, 2023 |  |  |
Dividends payable, date to be paid | May 23, 2023 |  |  |  |  |  |  |
Cash distribution, per share | $ 0.08 |  |  |  |  |  |  |
Quarterly distribution, per share | $ 0.08 |  |  |  |  |  |  |
Dividends payable, date of record |  | May 16, 2023 |  |  |  |  |  |
Total Supplemental Dividends Amount to be Paid |  |  | $ 0.32 |  |  |  |  |
Supplemental Dividends Declared to Date |  |  |  |  | $ 0.16 |  |  |
Supplemental Dividends Amount to be Paid Each Quarter |  |  | $ 0.08 |  |  |  |  |
Subsequent Event [Member] | Base and Supplemental Dividend |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Dividends payable, date declared |  |  | Apr. 27, 2023 |  |  |  |  |

X
- Definition Supplemental Dividends Amount To Be Paid Each Quarter Per Share + References No definition available. + Details
Name: | htgc_SupplementalDividendsAmountToBePaidEachQuarterPerShare
Namespace Prefix: | htgc_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Supplemental Dividends Declared to Date. + References No definition available. + Details
Name: | htgc_SupplementalDividendsDeclaredToDate
Namespace Prefix: | htgc_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total Supplemental Dividends Amount To Be Paid Per Share + References No definition available. + Details
Name: | htgc_TotalSupplementalDividendsAmountToBePaidPerShare
Namespace Prefix: | htgc_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the declared dividend will be paid, in YYYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The per share amount of a dividend declared, but not paid, as of the financial reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendsPayableAmountPerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Date the dividend to be paid was declared, in YYYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendsPayableDateDeclaredDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsAxis=htgc_SupplementalDividendMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=htgc_BaseDividendMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=htgc_BaseAndSupplementalDividendMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |