XML 46 R19.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Stock-based compensation (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity | A summary of the Company’s stock option activity and related information is as follows:
|  | Options outstanding
(shares in thousands) |  | Shares |  | Weighted- average exercise price |  | Weighted- average grant date fair value |  | Total intrinsic value of exercises (in thousands) |  | Aggregate intrinsic value (in thousands)
Outstanding at December 31, 2014: |  | 25,134 |  |  | $ | 6.62 |  |  |  |  |  |  | $ | 1,425,339 |
Granted |  | 420 |  |  | 45.56 |  |  | $ | 22.47 |  |  |  |  |
Exercised |  | (4,143 | ) |  | 1.44 |  |  |  |  | $ | 203,784 |  |  |
Forfeited/Cancelled |  | (74 | ) |  | 20.91 |  |  |  |  |  |  |
Outstanding at March 31, 2015: |  | 21,337 |  |  | $ | 8.34 |  |  |  |  |  |  | $ | 756,135 |
Exercisable at March 31, 2015 |  | 14,678 |  |  | $ | 2.68 |  |  |  |  |  |  | $ | 597,831 |
Vested and expected to vest at March 31, 2015 |  | 20,966 |  |  | $ | 8.08 |  |  |  |  |  |  | $ | 748,068 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | A summary of the Company’s RSU activity is as follows:
(shares in thousands) | Shares |  | Weighted- average grant date fair value
Non-vested shares at December 31, 2014 | 4,307 |  |  | $ | 21.98 |
Granted | 332 |  |  | 46.42 |
Vested | (817 | ) |  | 15.80 |
Forfeited | (8 | ) |  | 79.22 |
Non-vested shares at March 31, 2015 | 3,814 |  |  | 25.30 |
A summary of the Company’s restricted stock awards is as follows:
(shares in thousands) | Shares |  | Weighted- average grant date fair value |  | Aggregate intrinsic value (in thousands)
Non-vested shares at December 31, 2014 | 17 |  |  | $ | 6.30 |  |  | $ | 1,017 |
Vested | (17 | ) |  |  |  |
Non-vested shares at March 31, 2015 | — |  |  | $ | — |  |  | $ | — |
Allocation of Stock-based Compensation Expense | The following tables set forth the detailed allocation of stock-based compensation expense:
| Three months ended
(in thousands) | March 31, 2015 |  | March 31, 2014
Stock-based compensation expense: |  |  |
Cost of revenue | $ | 283 |  |  | $ | 168 |
Research and development | 3,535 |  |  | 1,401 |
Sales and marketing | 3,066 |  |  | 1,414 |
General and administrative | 19,617 |  |  | 1,054 |
Total stock-based compensation expense | 26,501 |  |  | 4,037 |
Total tax benefit recognized | (9,304 | ) |  | (342 | )
Decrease in net income | $ | 17,197 |  |  | $ | 3,695 |
Stock-based compensation expense by type of award: |  |  |
Stock options | $ | 5,957 |  |  | $ | 2,894 |
RSUs | 18,920 |  |  | 179 |
RSAs | 566 |  |  | 964 |
ESPP | 1,058 |  |  | — |
Total stock-based compensation expense | $ | 26,501 |  |  | $ | 4,037 |

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration