v2.4.0.6
Document and Entity Information
9 Months Ended
Dec. 31, 2011
Jan. 31, 2012
Common stock, Class A
Jan. 31, 2012
Non-voting common stock, Class B
Jan. 31, 2012
Restricted common stock, Class C
Jan. 31, 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 Dec. 31, 2011        
Amendment Flag false        
Document Fiscal Year Focus 2012        
Document Fiscal Period Focus Q3        
Current Fiscal Year End Date --03-31        
Entity Filer Category Non-accelerated Filer        
Entity Common Stock, Shares Outstanding   128,126,835 2,621,290 1,533,020 10,140,067