Income Tax Disclosure [Abstract] | Period [Axis] |
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2016-01-01 - 2016-12-31 |
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Income Tax Disclosure [Abstract] | |
Composition of Income Tax (Expense) Benefit from Continuing Operations | The composition of our income tax expense (benefit) from continuing operations for the years ended December 31, 2016, 2015, and 2014, was as follows (in thousands):
| | | | | | | | | | | | | | Current | | Deferred | | Total | Year ended December 31, 2016 | | | | | | U.S. Federal | $ | — |
| | $ | — |
| | $ | — |
| State | 1 |
| | — |
| | 1 |
| Foreign | — |
| | (2,895 | ) | | (2,895 | ) | Total | 1 |
| | (2,895 | ) | | (2,894 | ) | Year ended December 31, 2015 | | | | | | U.S. Federal | $ | — |
| | $ | — |
| | $ | — |
| State | 1 |
| | — |
| | 1 |
| Foreign | — |
| | — |
| | — |
| Total | 1 |
| | — |
| | 1 |
| Year ended December 31, 2014 | | | | | | U.S. Federal | $ | — |
| | $ | — |
| | $ | — |
| State | 1 |
| | — |
| | 1 |
| Foreign | — |
| | — |
| | — |
| Total | 1 |
| | — |
| | 1 |
|
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Reconciles of Income Tax Rate from Continuing Operations to the Federal Statutory Tax Rate | The following table reconciles the Company's effective income tax rate from continuing operations to the federal statutory tax rate of 34%: | | | | | | | | | | | YEAR ENDED DECEMBER 31, | | 2016 | | 2015 | | 2014 | Federal income taxes | 34.00 | % | | 34.00 | % | | 34.00 | % | State income taxes, net of federal benefit | 6.17 | % | | 3.77 | % | | 5.08 | % | Foreign rate differential | (14.69 | )% | | (3.51 | )% | | — | % | Meals and entertainment | (0.03 | )% | | (0.04 | )% | | (0.06 | )% | Stock Compensation | (0.55 | )% | | (2.27 | )% | | (4.41 | )% | Non-cash interest | — | % | | — | % | | (0.53 | )% | Net operating losses expiring due to Section 382 limitation | — | % | | (1.36 | )% | | — | % | Return to provision difference | (0.07 | )% | | (0.21 | )% | | — | % | ASC 740-10 | (4.07 | )% | | (8.11 | )% | | — | % | Other permanent differences | 0.17 | % | | 0.13 | % | | — | % | Change in valuation allowance | (19.86 | )% | | (22.40 | )% | | (28.85 | )% | Prior period true up | — | % | | — | % | | (5.23 | )% | Income tax benefits from continuing operations | 1.07 | % | | — | % | | — | % |
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Components of Deferred Tax Assets | As of December 31, 2016 and 2015, the tax effects of temporary differences that gave rise to significant portions of deferred tax assets and deferred tax liabilities were: | | | | | | | | | | DECEMBER 31, | | 2016 | | 2015 | Deferred tax assets - noncurrent: | | | | Deferred rent | $ | 2,305 |
| | $ | 754 |
| Net operating loss and other carryforwards | 66,702 |
| | 5,582 |
| Stock compensation | 34,129 |
| | 14,974 |
| Accrued compensation | 5,236 |
| | 2,234 |
| Deferred revenue | 14,883 |
| | 21,205 |
| Collaboration agreements | 6,485 |
| | — |
| Other | 679 |
| | 351 |
| Less: valuation allowance | (111,835 | ) | | (40,164 | ) | Total deferred tax assets - noncurrent | 18,584 |
| | 4,936 |
| Deferred tax liabilities - noncurrent: | | | | Section 481 adjustment | (1,319 | ) | | (19 | ) | Fixed assets | (2,334 | ) | | (1,254 | ) | Intangible assets | (1,682 | ) | | (3,201 | ) | Deferred state taxes | (13,249 | ) | | (3,307 | ) | Total deferred tax liabilities - noncurrent | (18,584 | ) | | (7,781 | ) | Net deferred tax assets/(liabilities) - noncurrent | $ | — |
| | $ | (2,845 | ) |
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Summary of Activity Related to Unrecognized Tax Benefit | The following table summarizes the activity related to uncertain tax benefits for 2016, 2015, and 2014, excluding any interest or penalties:
| | | | | | | | | | | | | | FOR THE YEAR ENDED DECEMBER 31, | | 2016 | | 2015 | | 2014 | Balance as of January 1 | $ | 10,392 |
| | $ | — |
| | $ | — |
| Gross increases - tax positions in prior periods | 1,379 |
| | — |
| | — |
| Gross decreases - tax positions in prior periods | (2,143 | ) | | — |
| | — |
| Gross increases - tax positions in current periods | 9,628 |
| | 10,392 |
| | — |
| Gross decreases - tax positions in current periods | — |
| | — |
| | — |
| Net unrecognized tax benefits as of December 31 | $ | 19,256 |
| | $ | 10,392 |
| | $ | — |
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