Stockholders' Equity and Membership Units	12 Months Ended
Dec. 31, 2025
Equity [Abstract]
Stockholders' Equity and Membership Units	Prior to the IPO, the Company issued membership units both in conjunction with purchases of subsidiaries and to reflect further investment in the Company’s operations. The Company issued Class A, Class B, and Class C units with substantially identical rights, privileges and liquidation preferences. No member shall be liable for the debts, liabilities or obligations of the Company beyond the member’s contributions. Pursuant to the Third Amended and Restated Limited Liability Company Agreement of TCFIII Spaceco Holdings LLC, such membership units entitled unitholders to share in the proceeds from capital transactions, including a sale of the Company, and granted them voting rights on matters requiring the consent of the members. As of December 31, 2024, a total of 166,737,325 shares of membership units were outstanding. In connection with the IPO in February 2025, all of the outstanding membership units were converted on a 0.68-for-1 basis into 112,566,039 shares of common stock of the Company. On July 23, 2025, the Company priced the underwritten public offering (the “Secondary Offering”) of its common stock, par value $0.001 per share (the“Common Stock”), at a public offering price of $49.00 per share (the “Secondary Offering Price”), pursuant to the Company’s registration statement on Form S-1 (File No. 333-288809), as amended (the “Registration Statement”). On July 23, 2025, in connection with the pricing of the Secondary Offering, certain of the Company’s existing stockholders (the “Selling Stockholders”) agreed to sell 21,000,000 shares of their Common Stock, in each case at the Secondary Offering Price, less underwriting discounts and commissions. The Underwriters were granted a 30-day option to purchase up to an additional 3,150,000 shares of Common Stock from a certain Selling Stockholder, which was fully exercised on July 24, 2025. The Secondary Offering and the shares were delivered on July 25, 2025. No shares were sold by the Company in the Secondary Offering and the Company did not receive any proceeds from the Secondary Offering.

Stockholders' Equity and Membership Units

12 Months Ended

Dec. 31, 2025

Stockholders' Equity and Membership Units

Prior to the IPO, the Company issued membership units both in conjunction with purchases of subsidiaries and to reflect further investment in the Company’s operations. The Company issued Class A, Class B, and Class C units with substantially identical rights, privileges and liquidation preferences. No member shall be liable for the debts, liabilities or obligations of the Company beyond the member’s contributions. Pursuant to the Third Amended and Restated Limited Liability Company Agreement of TCFIII Spaceco Holdings LLC, such membership units entitled unitholders to share in the proceeds from capital transactions, including a sale of the Company, and granted them voting rights on matters requiring the consent of the members. As of December 31, 2024, a total of 166,737,325 shares of membership units were outstanding. In connection with the IPO in February 2025, all of the outstanding membership units were converted on a 0.68-for-1 basis into 112,566,039 shares of common stock of the Company.

On July 23, 2025, the Company priced the underwritten public offering (the “Secondary Offering”) of its common stock, par value $0.001 per share (the“Common Stock”), at a public offering price of $49.00 per share (the “Secondary Offering Price”), pursuant to the Company’s registration statement on Form S-1 (File No. 333-288809), as amended (the “Registration Statement”). On July 23, 2025, in connection with the pricing of the Secondary Offering, certain of the Company’s existing stockholders (the “Selling Stockholders”) agreed to sell 21,000,000 shares of their Common Stock, in each case at the Secondary Offering Price, less underwriting discounts and commissions. The Underwriters were granted a 30-day option to purchase up to an additional 3,150,000 shares of Common Stock from a certain Selling Stockholder, which was fully exercised on July 24, 2025. The Secondary Offering and the shares were delivered on July 25, 2025. No shares were sold by the Company in the Secondary Offering and the Company did not receive any proceeds from the Secondary Offering.