| Component: (Network and Table) | |
|---|---|
| Network | 06033 - Disclosure - Goodwill and Intangible Assets (Details 3) (http://arubanetworks.com/role/GoodwillAndIntangibleAssetsDetails3)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001173752 (http://www.sec.gov/CIK) | 
| Goodwill and Intangible Assets [Abstract] | Period [Axis] | 
|---|---|
2011-08-01 - 2012-07-31  | |
Goodwill and Intangible Assets [Abstract]  | |
Estimated future amortization expense of purchased intangible assets  | |
2013  | 7,419,000    | 
2014  | 6,712,000    | 
2015  | 5,939,000    | 
2016  | 2,806,000    | 
2017  | 1,221,000    | 
Thereafter  | 1,499,000    | 
Total  | 25,596,000    |