| Schedule II Valuation and Qualifying Accounts |
| | | | | | | | | | | | | | | | | | | | Description | Balance at Beginning of Period | Additions Charged to Expense | Additions from Acquisitions | Reductions from Reserves | Other | Balance at End of Period | Balance at March 31, 2012 | | | | | | | Inventory reserves | $ | 19,859 |
| $ | 1,648 |
| $ | 32 |
| $ | (2,639 | ) | $ | — |
| $ | 18,900 |
| Allowance for doubtful accounts/sales returns | 7,121 |
| 3,006 |
| 12 |
| (3,866 | ) | — |
| 6,273 |
| Balance at March 31, 2011 | | | | | | | Inventory reserves | $ | 19,990 |
| $ | 1,408 |
| $ | 17 |
| $ | (1,556 | ) | $ | — |
| $ | 19,859 |
| Allowance for doubtful accounts/sales returns | 9,505 |
| 2,674 |
| 2 |
| (5,060 | ) | — |
| 7,121 |
| Balance at March 31, 2010 | | | | | | | Inventory reserves | $ | 20,290 |
| $ | 2,177 |
| $ | 631 |
| $ | (3,108 | ) | $ | — |
| $ | 19,990 |
| Allowance for doubtful accounts/sales returns | 9,934 |
| 2,408 |
| 182 |
| (3,019 | ) | — |
| 9,505 |
|
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