v2.4.0.6
Document and Entity Information
6 Months Ended
Sep. 30, 2012
Oct. 29, 2012
Common stock, Class A
Oct. 29, 2012
Non-voting common stock, Class B
Oct. 29, 2012
Restricted common stock, Class C
Oct. 29, 2012
Special voting common stock, Class E
Entity Registrant Name Booz Allen Hamilton Holding Corp        
Entity Central Index Key 0001443646        
Document Type 10-Q        
Document Period End Date Sep. 30, 2012        
Amendment Flag false        
Document Fiscal Year Focus 2013        
Document Fiscal Period Focus Q2        
Current Fiscal Year End Date --03-31        
Entity Filer Category Accelerated Filer        
Entity Common Stock, Shares Outstanding   132,045,531 2,350,854 1,372,336 8,942,319