Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2025

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

							Amount Due to Related Party as of
			Total Payments in the Nine Months Ended September 30,				September 30,	December 31,
	Nature of Relationship		2025		2024		2025	2024
Name		Description of the Transactions	(in thousands)
LeoStella	Former Joint Venture with Thales Alenia Space	The Company owned 50% of LeoStella, its joint venture with Thales. The Company contracted with LeoStella for the design, development and manufacture of satellites to operate its business. In November 2024, the Company acquired the remaining 50% of common units of BlackSky Satellite Systems, fka LeoStella, and it is now a wholly-owned subsidiary of BlackSky.	N/A		$	23,422	N/A	N/A
Ursa Space Systems	Strategic Partner	The chairman of the Company’s board of directors, Will Porteous, is also an investor and member of the board of directors of Ursa Space Systems. The Company has a non-cancelable operational commitment with Ursa Space Systems.	$	375	417		42	42
Thales Alenia Space	Shareholder and Parent of Wholly-owned Subsidiary, Seahawk	Design, development and manufacture of telescopes.	4,808		3,666		—	—
Seahawk	Subsidiary of Thales Alenia Space	In 2019, the Company raised and converted $18.4 million from prior debt into new, outstanding debt and issued 13.5 million warrants to purchase Legacy BlackSky common stock. In July 2025, the Company repaid all debt outstanding and accrued interest to Seahawk.	28,101		277		—	25,072
Intelsat	Former debt Issuer	In 2019, the Company entered into a term loan facility for $50.0 million and issued 20.2 million warrants to purchase Legacy BlackSky common stock. In July 2025, the Company repaid all debt outstanding and accrued interest to Intelsat.	$	76,391	1,050		N/A	67,962