XML 57 R23.htm IDEA: XBRL DOCUMENT
v3.19.1

Stock-based compensation (Tables) | 6 Months Ended
--- | ---
Mar. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Stock Option Activity | The summary of the Company’s stock option activity is as follows:
| Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value
|  |  |  |  | (in years) |  | (in thousands)
Outstanding at September 29, 2018 | 48,504,182 |  |  | $ | 10.33 |  |  | 6.6 |  | $ | 276,959 |
Granted | 1,214,328 |  |  |  |  |  |  |  |
Exercised | (4,794,807 | ) |  |  |  |  |  |  |
Forfeited | (3,198,652 | ) |  |  |  |  |  |  |
Outstanding at March 30, 2019 | 41,725,051 |  |  | $ | 10.95 |  |  | 6.5 |  | $ | 79,001 |
At March 30, 2019 |  |  |  |  |  |  |
Options exercisable | 27,505,569 |  |  | $ | 9.19 |  |  | 5.5 |  | $ | 79,001 |
Options vested and expected to vest | 39,490,352 |  |  | $ | 10.75 |  |  | 6.4 |  | $ | 79,001 |
Schedule of Restricted Stock Unit Activity | The summary of the Company’s unvested RSU activity is as follows:
| Number of Units |  | Weighted Average Grant Date Fair Value |  | Aggregate Intrinsic Value
|  |  |  |  | (in thousands)
Unvested at September 29, 2018 | — |  |  | $ | — |  |  | $ | — |
Granted | 6,124,663 |  |  |  |  |
Vested | (29,575 | ) |  |  |  |
Forfeited | (26,730 | ) |  |  |  |
Unvested at March 30, 2019 | 6,068,358 |  |  | $ | 11.46 |  |  | $ | 62,443 |
At March 30, 2019 |  |  |  |  |
Units expected to vest | 4,561,416 |  |  | $ | 11.47 |  |  | $ | 46,937 |
Schedule of Stock-based Compensation Expense | Total stock-based compensation expense by function category was as follows:
| Three Months Ended |  | Six Months Ended
| March 30, 2019 |  | March 31, 2018 |  | March 30, 2019 |  | March 31, 2018
(In thousands) |  |  |  |  |  |  |
Cost of revenue | $ | 218 |  |  | $ | 51 |  |  | $ | 403 |  |  | $ | 107 |
Research and development | 4,284 |  |  | 3,384 |  |  | 7,888 |  |  | 6,766 |
Sales and marketing | 3,128 |  |  | 4,037 |  |  | 5,809 |  |  | 8,022 |
General and administrative | 3,456 |  |  | 2,056 |  |  | 6,018 |  |  | 4,170 |
Total stock-based compensation expense | $ | 11,086 |  |  | $ | 9,528 |  |  | $ | 20,118 |  |  | $ | 19,065 |

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -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 S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration