Rendering

Component: (Network and Table)
Network
06131 - Disclosure - Income taxes (Details 1)
(http://advisoryboardcompany.com/role/IncomeTaxesDetails1)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Income Taxes [Abstract]Period [Axis]
2011-04-01 - 2012-03-31
2010-04-01 - 2011-03-31
2009-04-01 - 2010-03-31
Income Taxes [Abstract]
 
 
 
Statutory rates to income before provision for income taxes
 
 
 
Statutory U.S. federal income tax rate
.350  
.350  
.350  
State income tax, net of U.S. federal income tax benefit
.055  
.055  
.057  
Tax-exempt interest income
(.015) 
(.015) 
(.027) 
Washington, D.C. QHTC income tax credits
(.031) 
(.073) 
(.091) 
Other permanent differences, net
.027  
.032  
.054  
Effective tax rate on continuing operations
.386  
 
.349  
 
.343