Organization	3 Months Ended
Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Willow Tree Capital Corporation (the “Company”), was formed on June 29, 2022 as a Maryland Corporation. The Company invests primarily in floating rate middle market senior secured loans. The Company is an externally managed, non-diversified, closed-end management investment company that has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). In addition, the Company intends to elect to be treated for U.S. federal income tax purposes and to qualify annually thereafter, as a regulated investment company (“RIC”), under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). The Company is externally managed by Willow Tree Capital Corp Advisors LLC (the “Adviser”). On October 31, 2023, WT Capital Fund - SPV1, LLC (the "SPV Subsidiary"), a wholly owned subsidiary of the Company was formed. The SPV Subsidiary is consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by it are included in the consolidated financial statements. On January 19, 2024, Willow Tree Capital Offshore Blocker, LLC (the "Blocker Subsidiary"), a wholly owned subsidiary of the Company was formed. The SPV Subsidiary and Blocker Subsidiary are consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by the SPV Subsidiary and Blocker Subsidiary are included in the consolidated financial statements. On November 8, 2024, immediately prior to the Company electing to be regulated as a BDC (the "BDC Election"), each of Willow Tree Capital Fund, LLC and Willow Tree Capital Offshore Fund, LLC merged with and into the Company (the "Merger"). After the Merger, the Company made the BDC Election, and commenced operations, therefore the Company’s results of operations for the three months ended March 31, 2025 are not comparable and, accordingly, no comparative amount for the prior year period is discussed. The Company’s investment objective is to maximize the total return to shareholders in the form of current income and capital appreciation. The Company generates returns primarily from interest income and fees from senior secured loans, with some capital appreciation through nominal junior capital co-investments. The Company conducts a continuous private offering (the “Private Offering”) of shares of its common stock, par value $0.01 (the “Shares”), to accredited investors, as defined in Regulation D under the Securities Act of 1933 (the “1933 Act”) or non U.S. persons as defined in Regulation S under the 1933 Act, in reliance on exemptions from the registration requirements of the 1933 Act. The Company will hold one or more closings at which it will either accept capital commitments to purchase Shares from investors or issue Shares for immediate cash investment by the investors. Shareholders that make capital commitments to the Company will be required to fund drawdowns to purchase the Company’s Shares up to the amount of their respective capital commitments each time the Company delivers a drawdown notice.

Willow Tree Capital Corporation (the “Company”), was formed on June 29, 2022 as a Maryland Corporation. The Company invests primarily in floating rate middle market senior secured loans. The Company is an externally managed, non-diversified, closed-end management investment company that has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). In addition, the Company intends to elect to be treated for U.S. federal income tax purposes and to qualify annually thereafter, as a regulated investment company (“RIC”), under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). The Company is externally managed by Willow Tree Capital Corp Advisors LLC (the “Adviser”).

On October 31, 2023, WT Capital Fund - SPV1, LLC (the "SPV Subsidiary"), a wholly owned subsidiary of the Company was formed. The SPV Subsidiary is consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by it are included in the consolidated financial statements. On January 19, 2024, Willow Tree Capital Offshore Blocker, LLC (the "Blocker Subsidiary"), a wholly owned subsidiary of the Company was formed. The SPV Subsidiary and Blocker Subsidiary are consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by the SPV Subsidiary and Blocker Subsidiary are included in the consolidated financial statements.

On November 8, 2024, immediately prior to the Company electing to be regulated as a BDC (the "BDC Election"), each of Willow Tree Capital Fund, LLC and Willow Tree Capital Offshore Fund, LLC merged with and into the Company (the "Merger"). After the Merger, the Company made the BDC Election, and commenced operations, therefore the Company’s results of operations for the three months ended March 31, 2025 are not comparable and, accordingly, no comparative amount for the prior year period is discussed.

The Company generates returns primarily from interest income and fees from senior secured loans, with some capital appreciation through nominal junior capital co-investments.

The Company conducts a continuous private offering (the “Private Offering”) of shares of its common stock, par value $0.01 (the “Shares”), to accredited investors, as defined in Regulation D under the Securities Act of 1933 (the “1933 Act”) or non U.S. persons as defined in Regulation S under the 1933 Act, in reliance on exemptions from the registration requirements of the 1933 Act. The Company will hold one or more closings at which it will either accept capital commitments to purchase Shares from investors or issue Shares for immediate cash investment by the investors.

Shareholders that make capital commitments to the Company will be required to fund drawdowns to purchase the Company’s Shares up to the amount of their respective capital commitments each time the Company delivers a drawdown notice.