Stockholders' Equity and Membership Units	9 Months Ended
Sep. 30, 2026
Equity [Abstract]
Stockholders' Equity and Membership Units	10. Stockholders’ Equity and Membership Units Prior to the IPO, the Company issued membership units 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. 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. 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 25, 2025, the Company consummated the underwritten public offering of 21,000,000 shares of its common stock by certain selling stockholders at a public offering price of $49.00 per share, less underwriting discounts and commissions, pursuant to the Company’s registration statement on Form S-1 (File No. 333-288809) (the “2025 Secondary Offering”). The underwriters in the 2025 Secondary Offering were granted a 30-day option to purchase up to an additional 3,150,000 shares of common stock from certain selling stockholders, which was fully exercised on July 24, 2025. No shares were sold by the Company in the 2025 Secondary Offering, and the Company did not receive any proceeds from the sale of common stock by the selling stockholders. On June 1, 2026, the Company consummated the underwritten public offering of 14,000,000 shares of its common stock by certain selling stockholders at a public offering price of $61.00 per share, less underwriting discounts and commissions, pursuant to the Company’s registration statement on Form S-3 (File No. 333-296304) (the “2026 Secondary Offering”). No shares were sold by the Company in the 2026 Secondary Offering, and the Company did not receive any proceeds from the sale of common stock by the selling stockholders.

Stockholders' Equity and Membership Units

9 Months Ended

Sep. 30, 2026

Stockholders' Equity and Membership Units

10.

Stockholders’ Equity and Membership Units

Prior to the IPO, the Company issued membership units 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. 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. 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 25, 2025, the Company consummated the underwritten public offering of 21,000,000 shares of its common stock by certain selling stockholders at a public offering price of $49.00 per share, less underwriting discounts and commissions, pursuant to the Company’s registration statement on Form S-1 (File No. 333-288809) (the “2025 Secondary Offering”). The underwriters in the 2025 Secondary Offering were granted a 30-day option to purchase up to an additional 3,150,000 shares of common stock from certain selling stockholders, which was fully exercised on July 24, 2025. No shares were sold by the Company in the 2025 Secondary Offering, and the Company did not receive any proceeds from the sale of common stock by the selling stockholders.

On June 1, 2026, the Company consummated the underwritten public offering of 14,000,000 shares of its common stock by certain selling stockholders at a public offering price of $61.00 per share, less underwriting discounts and commissions, pursuant to the Company’s registration statement on Form S-3 (File No. 333-296304) (the “2026 Secondary Offering”). No shares were sold by the Company in the 2026 Secondary Offering, and the Company did not receive any proceeds from the sale of common stock by the selling stockholders.