Consolidated balance sheets (Parenthetical) - $ / shares |
May. 30, 2015 |
Feb. 28, 2015 |
May. 31, 2014 |
|---|---|---|---|
| Consolidated balance sheets | |||
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 250,000,000 | 250,000,000 | 250,000,000 |
| Common stock, shares issued | 47,983,804 | 47,983,660 | 47,974,829 |
| Common stock, shares outstanding | 47,983,804 | 47,983,660 | 47,974,829 |