| Component: (Network and Table) | |
|---|---|
| Network | 2419403 - Disclosure - Employee Benefit Plans (Components of Net Postretirement Medical Expense) (Details) (http://www.boozallen.com/role/EmployeeBenefitPlansComponentsOfNetPostretirementMedicalExpenseDetails) |
| Table | Schedule of Defined Benefit Plans Disclosures [Table] |
| Reporting Entity [Axis] | 0001443646 (http://www.sec.gov/CIK) |
| Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] | Officer Medical Plan |
| Defined Benefit Plan Disclosure [Line Items] | Period [Axis] | ||
|---|---|---|---|
2015-04-01 - 2016-03-31 | 2014-04-01 - 2015-03-31 | 2013-04-01 - 2014-03-31 | |
Service cost | |||
Interest cost | |||
Net actuarial loss | |||
Total postretirement medical expense | |||