Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Feb. 29, 2016	Feb. 28, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 2,018	$ 1,531
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	52,135,194	52,881,002
Common stock, shares outstanding (in shares)	52,135,194	52,881,002