Cover Page - USD ($) $ in Millions	12 Months Ended
Cover Page - USD ($) $ in Millions	Dec. 31, 2025	Mar. 03, 2026	Jun. 30, 2025
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--12-31
Document Period End Date	Dec. 31, 2025
Document Transition Report	false
Entity File Number	001-41603
Entity Registrant Name	BRIDGER AEROSPACE GROUP HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	88-3599336
Entity Address, Address Line One	90 Aviation Lane
Entity Address, City or Town	Belgrade
Entity Address, State or Province	MT
Entity Address, Postal Zip Code	59714
City Area Code	406
Local Phone Number	813-0079
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	BAER
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 76.3
Entity Common Stock, Shares Outstanding		55,923,319
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s definitive proxy statement relating to the 2026 Annual Meeting of Stockholders, to be filed no later than 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates, are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated.
Entity Central Index Key	0001941536
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false
Warrants
Document Information [Line Items]
Title of 12(b) Security	Warrants, each whole warrant exercisable for one share of Common Stock at an exercise price of $11.50 per share
Trading Symbol	BAERW
Security Exchange Name	NASDAQ