Income Taxes (Tables)
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12 Months Ended |
Dec. 31, 2015 |
| Income Tax Disclosure [Abstract] |
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| Schedule of Geographical Breakdown of Income (Loss) Before Provision for (Benefit From) Income Taxes |
The Company’s geographical breakdown of income before income taxes is as follows: | | | | | | | | | | | | | | | | Year Ended December 31, | | | 2015 | | 2014 | | 2013 | | | (in thousands) | Domestic | | $ | 22,540 |
| | $ | 7,384 |
| | $ | 947 |
| Foreign | | 1,980 |
| | 1,229 |
| | 1,094 |
| Income before income taxes | | $ | 24,520 |
| | $ | 8,613 |
| | $ | 2,041 |
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| Schedule of Provision for (Benefit From) Income Taxes |
The provision for (benefit from) income taxes consists of the following: | | | | | | | | | | | | | | | | Year Ended December 31, | | | 2015 | | 2014 | | 2013 | | | (in thousands) | Current | | | | | | | Federal | | $ | 115 |
| | $ | — |
| | $ | (40 | ) | State | | 1,041 |
| | 317 |
| | 154 |
| Foreign | | 693 |
| | 651 |
| | 452 |
| Total current provision | | 1,849 |
| | 968 |
| | 566 |
| Deferred | | | | | | | Federal | | 7,115 |
| | (22,184 | ) | | 6 |
| State | | (247 | ) | | (433 | ) | | — |
| Foreign | | (62 | ) | | 18 |
| | (72 | ) | Total deferred provision (benefit) | | 6,806 |
| | (22,599 | ) | | (66 | ) | Total provision for (benefit from) income taxes | | $ | 8,655 |
| | $ | (21,631 | ) | | $ | 500 |
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| Schedule of Effective Income Tax Rate Reconciliation |
The reconciliation of the statutory federal income tax rate to the Company’s effective tax rate is as follows: | | | | | | | | | | | | | Year Ended December 31, | | | 2015 | | 2014 | | 2013 | Federal statutory rate | | 35.0 | % | | 35.0 | % | | 34.0 | % | State taxes | | 2.2 |
| | 1.4 |
| | 5.1 |
| Stock-based compensation | | 0.5 |
| | 1.3 |
| | 9.1 |
| Foreign source income | | 0.6 |
| | 3.9 |
| | 1.9 |
| Change in valuation allowance | | 1.3 |
| | (270.5 | ) | | (28.4 | ) | Incremental federal rate benefit previously not recognized | | — |
| | (7.0 | ) | | — |
| Federal and state research and development credit | | (3.9 | ) | | (11.3 | ) | | — |
| Other | | (0.4 | ) | | (3.9 | ) | | 2.8 |
| Provision for (benefit from) income taxes | | 35.3 | % | | (251.1 | )% | | 24.5 | % |
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| Schedule of Deferred Tax Assets and Liabilities |
The components of the Company’s deferred tax assets and liabilities are as follows: | | | | | | | | | | | | December 31, | | | 2015 | | 2014 | | | (in thousands) | Deferred tax assets | | | | | Net operating loss carryforwards | | $ | 1,936 |
| | $ | 12,849 |
| Research and development credit carryforwards | | 6,508 |
| | 6,392 |
| Accrued liabilities | | 614 |
| | 583 |
| Deferred revenues | | 3,838 |
| | 3,291 |
| Deferred rent | | 142 |
| | 191 |
| Intangible assets | | 246 |
| | 401 |
| Stock-based compensation | | 8,301 |
| | 4,149 |
| Other | | 1,396 |
| | 903 |
| Gross deferred tax assets | | 22,981 |
| | 28,759 |
| Valuation allowance | | (3,303 | ) | | (3,079 | ) | Net deferred tax assets | | 19,678 |
| | 25,680 |
| Deferred tax liabilities | | | | | Fixed assets | | (3,599 | ) | | (3,039 | ) | Intangible assets | | — |
| | (2 | ) | Total deferred tax liabilities | | (3,599 | ) | | (3,041 | ) | Net deferred tax assets | | $ | 16,079 |
| | $ | 22,639 |
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| Schedule of Unrecognized Tax Benefits |
A reconciliation of the Company’s unrecognized tax benefits is as follows: | | | | | | | | | | | | | | | | Year Ended December 31, | | | 2015 | | 2014 | | 2013 | | | (in thousands) | Unrecognized tax benefits beginning balance | | $ | 3,330 |
| | $ | 3,255 |
| | $ | 2,647 |
| Gross increase for tax positions of prior years | | 20 |
| | — |
| | 241 |
| Gross decrease for tax positions of prior years | | (171 | ) | | (127 | ) | | — |
| Gross increase for tax positions of current year | | 418 |
| | 332 |
| | 446 |
| Lapse of statute of limitations | | (91 | ) | | (130 | ) | | (79 | ) | Total unrecognized tax benefits | | $ | 3,506 |
| | $ | 3,330 |
| | $ | 3,255 |
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