Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2025	Mar. 13, 2026	Jun. 30, 2025
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Document Transition Report	false
Entity File Number	001-39113
Entity Registrant Name	BLACKSKY TECHNOLOGY INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-1833760
Entity Address, Address Line One	2411 Dulles Corner Park
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Herndon
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	20171
City Area Code	703
Local Phone Number	935-1930
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Central Index Key	0001753539
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Financial Statement Error Correction [Flag]	false
Amendment Flag	false
Entity Shell Company	false
Entity Public Float			$ 698,196,072
Entity Common Stock, Shares Outstanding		36,994,814
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Class A Common Stock
Document Information [Line Items]
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	BKSY
Security Exchange Name	NYSE
Common stock warrants (exercisable for Class A common stock) treated as equity
Document Information [Line Items]
Title of 12(b) Security	Warrants, exercisable for shares of Class A common stock at an exercise price of $92.00 per share
Trading Symbol	BKSY.W
Security Exchange Name	NYSE