|
Business and Summary of Significant Accounting Policies - Reclassifications (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Jan. 31, 2013
|
Jan. 31, 2012
|
|
| Business and Summary of Significant Accounting Policies [Abstract] | ||
| Decrease to License and other revenue | $ (26.5) | $ (23.2) |
| Increase to Subscription revenue | 26.5 | 23.2 |
| Decrease to Cost of license and other revenue | (32.1) | (20.5) |
| Increase to Cost of subscription revenue | $ 32.1 | $ 20.5 |