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Stock-based compensation (Tables) | 6 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement [Abstract] |
Summary of Stock Option Activity and Related Information | The following table summarizes the activity for options that vest solely based upon the satisfaction of a service condition for the six months ended September 30, 2021:
| Shares subject to options outstanding |  | Weighted-average exercise price |  | Weighted-average remaining contractual life (in years) |  | Aggregate intrinsic values (in thousands)
Balance as of March 31, 2021 | 1,640,981 |  |  | $ | 14.86 |  |  |  |  |
Exercised | (92,832) |  |  | 11.12 |  |  |  |  |
Balance as of September 30, 2021 | 1,548,149 |  |  | $ | 15.08 |  |  | 5.6 |  | $ | 21,627 |
Exercisable, September 30, 2021 | 1,267,031 |  |  | $ | 15.23 |  |  | 5.2 |  | $ | 17,514 |
The following table summarizes the activity for stock options that vest based upon the satisfaction of performance- or market-based vesting conditions for the six months ended September 30, 2021:
| Shares subject to options outstanding |  | Weighted-average exercise price |  | Weighted-average remaining contractual life (in years) |  | Aggregate intrinsic values (in thousands)
Balance as of March 31, 2021 | 1,108,592 |  |  | $ | 8.72 |  |  |  |  |
Exercised | (92,565) |  |  | 2.08 |  |  |  |  |
Balance as of September 30, 2021 | 1,016,027 |  |  | $ | 9.33 |  |  | 3.5 |  | $ | 20,039 |
Exercisable, September 30, 2021 | 716,027 |  |  | $ | 1.99 |  |  | 2.8 |  | $ | 19,376 |
Summary of Activities for Restricted Stock Awards ("RSAs") and Restricted Stock Units ("RSUs") | The following table summarizes the activities for restricted stock awards (“RSAs”) and restricted stock units (“RSUs”) for the six months ended September 30, 2021:
| RSUs and shares of restricted stock outstanding |  | Weighted-average grant date fair value
Balance as of March 31, 2021 | 2,289,615 |  |  | $ | 14.67 |
Granted | 834,638 |  |  | 27.81 |
Vested | (463,596) |  |  | 15.00 |
Canceled or forfeited | (144,923) |  |  | 15.35 |
Balance as of September 30, 2021 | 2,515,734 |  |  | $ | 18.93 |

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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=120381028&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=120381028&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=120381028&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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