Stockholders' Equity (Tables)

12 Months Ended

Jan. 31, 2017

Equity [Abstract]

Summary of Reserved Shares of Common Stock for Future Issuance

As of January 31, 2017, we had reserved shares of common stock for future issuance as follows:

	January 31, 2017
Shares underlying outstanding stock options	56,840,189
Shares underlying outstanding restricted stock units	8,783,024
Shares reserved for future equity awards	24,457,623
Shares reserved for future employee stock purchase plan awards	2,968,087
Total	93,048,923