Equity Incentive Plan - Summary of Stock Option Activity And Activity Regarding Shares Available For Grant Under The Plan (Detail) - 2006 Equity Incentive Plan - USD ($)
$ / shares in Units, $ in Thousands |
|
12 Months Ended |
Apr. 01, 2018 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Opening Balance, Shares Available for Grant |
8,876,172
|
3,954,710
|
8,099,908
|
8,876,172
|
| Opening Balance, Outstanding Stock Options |
24,203,058
|
29,817,566
|
28,067,150
|
24,203,058
|
| Opening Balance, Weighted-Average Exercise Price |
$ 5.05
|
$ 7.99
|
$ 6.97
|
$ 5.05
|
| Opening Balance, Aggregate Intrinsic Value |
$ 134,591
|
$ 106,688
|
$ 128,583
|
$ 134,591
|
| Shares authorized |
|
6,600,000
|
|
12,000,000
|
| Granted |
|
(11,957,813)
|
(7,061,920)
|
(14,265,875)
|
| Granted, Outstanding Stock Options |
|
11,957,813
|
7,061,920
|
14,265,875
|
| Granted, Weighted-Average Exercise Price |
|
$ 11.57
|
$ 11.55
|
$ 11.11
|
| Exercised |
|
(9,973,842)
|
(2,394,782)
|
(8,912,172)
|
| Exercised, Weighted-Average Exercise Price |
|
$ 7.65
|
$ 3.65
|
$ 8.11
|
| Exercised, Aggregate Intrinsic Value |
|
$ 47,571
|
$ 18,967
|
$ 29,900
|
| Cancelled/Forfeited/Expired |
|
2,426,511
|
2,916,722
|
1,489,611
|
| Cancelled/Forfeited/Expired, Outstanding Stock Options |
|
(2,426,511)
|
(2,916,722)
|
(1,489,611)
|
| Cancelled/Forfeited/Expired, Weighted-Average Exercise Price |
|
$ 10.29
|
$ 10.30
|
$ 8.80
|
| Ending Balance, Shares Available for Grant |
|
1,023,408
|
3,954,710
|
8,099,908
|
| Ending Balance, Outstanding Stock Options |
|
29,375,026
|
29,817,566
|
28,067,150
|
| Ending Balance, Weighted-Average Exercise Price |
|
$ 9.37
|
$ 7.99
|
$ 6.97
|
| Weighted-Average Remaining Contractual Life (Years) |
8 years
|
7 years 1 month 6 days
|
7 years 6 months
|
7 years 9 months 18 days
|
| Ending Balance, Aggregate Intrinsic Value |
|
$ 403,498
|
$ 106,688
|
$ 128,583
|
| Vested and exercisable, Outstanding Stock Options |
|
16,164,320
|
|
|
| Vested and exercisable, Weighted-Average Exercise Price |
|
$ 7.77
|
|
|
| Vested and exercisable, Weighted-Average Remaining Contractual Life (Years) |
|
5 years 9 months 18 days
|
|
|
| Vested and exercisable, Aggregate Intrinsic Value |
|
$ 248,018
|
|
|