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Business Overview	12 Months Ended
	Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business Overview	Business Overview Our Business Booz Allen Hamilton Holding Corporation, including its wholly owned subsidiaries, or the Company, we, us, and our, was incorporated in Delaware in May 2008. As an advanced technology company, the Company builds technology solutions using artificial intelligence (“AI”), cyber, and other cutting-edge technologies to advance and protect the nation and its citizens. The Company supports critical missions for a diverse base of federal government customers, including nearly all of the U.S. government’s cabinet-level departments, as well as for commercial customers, both domestically and in select international locations. The Company is headquartered in McLean, Virginia, with approximately 35,800 employees as of March 31, 2025, and reports operating results and financial data in one reportable segment.

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- Definition

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 275
-Publisher FASB
-URI https://asc.fasb.org/275/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-SubTopic 10
-Topic 275
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-1

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