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Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Feb. 28, 2017
Postemployment Benefits [Abstract]
Employee Benefit Plan	Employee Benefit Plan Our 401(k) tax-deferred savings plan (the "401(k) Plan") permits eligible U.S. participants to make contributions by salary deduction pursuant to Section 401(k) of the Internal Revenue Code of 1986, as amended. Under the 401(k) Plan, participating employees may defer a portion of their pre-tax earnings, up to the IRS annual contribution limit, and we will match contributions up to a certain amount of each employee’s eligible earnings. We incurred 401(k) Plan contribution expenses of $1.3 million, $1.2 million and $1.0 million in fiscal 2017, 2016 and 2015, respectively.