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N-2 | 9 Months Ended
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Sep. 30, 2022
Cover [Abstract] |
Entity Central Index Key | 0001280784
Amendment Flag | false
Securities Act File Number | 814-00702
Document Type | 10-Q
Entity Registrant Name | HERCULES CAPITAL, INC.
Entity Address, Address Line One | 400 Hamilton Ave
Entity Address, Address Line Two | Suite 310
Entity Address, City or Town | Palo Alto
Entity Address, State or Province | CA
Entity Address, Postal Zip Code | 94301
City Area Code | 650
Local Phone Number | 289-3060
Entity Emerging Growth Company | false
General Description of Registrant [Abstract] |
Risk Factors [Table Text Block] | ITEM 1A. RISK FACTORS In addition to the risks discussed below, important risk factors that could cause results or events to differ from current expectations are described in Part I, Item 1A “Risk Factors” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 filed with the SEC on February 22, 2022 (the “Annual Report”) and Part II, Item 1A “Risk Factors” of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2022 filed with the SEC on May 5, 2022. Our financial results could be negatively affected if a significant portfolio investment fails to perform as expected. Our total investment in companies may be significant individually or in the aggregate. As a result, if a significant investment in one or more companies fails to perform as expected, our financial results could be more negatively affected and the magnitude of the loss could be more significant than if we had made smaller investments in more companies. The following table shows the fair value of the totals of investments held in portfolio companies at September 30, 2022 that represent greater than 5% of our net assets:
(in thousands) | September 30, 2022 |
| Fair Value |  |  | Percentage of Net Assets |
Corium, Inc. | $ | 135,828 |  |  |  | 10.0 | %
Phathom Pharmaceuticals, Inc. | $ | 94,119 |  |  |  | 6.9 | %
Worldremit Group Limited | $ | 92,698 |  |  |  | 6.8 | %
SeatGeek, Inc. | $ | 87,812 |  |  |  | 6.4 | %
Rocket Lab Global Services, LLC | $ | 87,283 |  |  |  | 6.4 | %
Axsome Therapeutics, Inc. | $ | 85,438 |  |  |  | 6.3 | %
Convoy, Inc. | $ | 73,674 |  |  |  | 5.4 | %
uniQure B.V. | $ | 73,527 |  |  |  | 5.4 | %
• Corium, Inc. develops, engineers, and manufactures drug delivery products and devices that utilize the skin and mucosa as a primary means of transport. • Phathom Pharmaceuticals, Inc. is a biopharmaceutical company focused on the development and commercialization of novel treatments for gastrointestinal diseases and disorders. • Worldremit Group Limited is a global online money transfer business. • SeatGeek, Inc. is a mobile-focused ticket platform that enables users to buy and sell tickets for live sports, concerts and theater events. • Rocket Lab Global Services, LLC is a commercial space provider of high-frequency, low-cost launches. • Axsome Therapeutics, Inc. is a biopharmaceutical company developing novel therapies for the management of central nervous system disorders for which there are limited treatment options. • Convoy, Inc. is a developer for on-demand shipment services. • uniQure B.V. is a leader in the field of gene therapy, developing proprietary therapies to treat patients with severe genetic diseases of the central nervous system and liver. Our financial results could be materially adversely affected if these portfolio companies or any of our other significant portfolio companies encounter financial difficulty and fail to repay their obligations or to perform as expected.
Significant Portfolio Investment [Member] |
General Description of Registrant [Abstract] |
Risk [Text Block] | Our financial results could be negatively affected if a significant portfolio investment fails to perform as expected. Our total investment in companies may be significant individually or in the aggregate. As a result, if a significant investment in one or more companies fails to perform as expected, our financial results could be more negatively affected and the magnitude of the loss could be more significant than if we had made smaller investments in more companies. The following table shows the fair value of the totals of investments held in portfolio companies at September 30, 2022 that represent greater than 5% of our net assets:
(in thousands) | September 30, 2022 |
| Fair Value |  |  | Percentage of Net Assets |
Corium, Inc. | $ | 135,828 |  |  |  | 10.0 | %
Phathom Pharmaceuticals, Inc. | $ | 94,119 |  |  |  | 6.9 | %
Worldremit Group Limited | $ | 92,698 |  |  |  | 6.8 | %
SeatGeek, Inc. | $ | 87,812 |  |  |  | 6.4 | %
Rocket Lab Global Services, LLC | $ | 87,283 |  |  |  | 6.4 | %
Axsome Therapeutics, Inc. | $ | 85,438 |  |  |  | 6.3 | %
Convoy, Inc. | $ | 73,674 |  |  |  | 5.4 | %
uniQure B.V. | $ | 73,527 |  |  |  | 5.4 | %
• Corium, Inc. develops, engineers, and manufactures drug delivery products and devices that utilize the skin and mucosa as a primary means of transport. • Phathom Pharmaceuticals, Inc. is a biopharmaceutical company focused on the development and commercialization of novel treatments for gastrointestinal diseases and disorders. • Worldremit Group Limited is a global online money transfer business. • SeatGeek, Inc. is a mobile-focused ticket platform that enables users to buy and sell tickets for live sports, concerts and theater events. • Rocket Lab Global Services, LLC is a commercial space provider of high-frequency, low-cost launches. • Axsome Therapeutics, Inc. is a biopharmaceutical company developing novel therapies for the management of central nervous system disorders for which there are limited treatment options. • Convoy, Inc. is a developer for on-demand shipment services. • uniQure B.V. is a leader in the field of gene therapy, developing proprietary therapies to treat patients with severe genetic diseases of the central nervous system and liver. Our financial results could be materially adversely affected if these portfolio companies or any of our other significant portfolio companies encounter financial difficulty and fail to repay their obligations or to perform as expected.

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