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Stockholders' Equity (Tables) | 3 Months Ended
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Apr. 30, 2019
Equity [Abstract] |
Summarizes of Stock Option Activities | Stock option activity for the three months ended April 30, 2019 was as follows:
|  |  |  |  |  | Weighted Average |  |  | Aggregate |
|  | Shares |  |  | Exercise Price |  |  | Intrinsic Value |
|  | (in thousands) |  |  | Per Share |  |  | (in thousands) |
Balance as of January 31, 2019 |  |  | 1,691 |  |  | $ | 6.39 |  |  | $ | 14,755 |
Granted |  |  | 89 |  |  |  | 15.49 |  |  |  |  |
Exercised |  |  | (23 | ) |  |  | 1.87 |  |  |  |  |
Canceled |  |  | (42 | ) |  |  | 12.71 |  |  |  |  |
Balance as of April 30, 2019 |  |  | 1,715 |  |  | $ | 6.77 |  |  | $ | 11,847 |
Vested and exercisable as of April 30, 2019 |  |  | 1,490 |  |  | $ | 5.84 |  |  | $ | 11,514 |
Summarizes of Restricted Stock Units Activities | RSU activity for the three months ended April 30, 2019 was as follows:
|  | Shares (in thousands) |  |  | Weighted Average Grant-Date Fair Value Per Share |
Balance as of January 31, 2019 |  |  | 1,925 |  |  | $ | 10.49 |
Granted |  |  | 848 |  |  |  | 15.47 |
Vested |  |  | (216 | ) |  |  | 9.60 |
Canceled |  |  | (32 | ) |  |  | 11.13 |
Balance as of April 30, 2019 |  |  | 2,525 |  |  | $ | 12.23 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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