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v3.3.1.900

Income Taxes (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
NOL carryforwards |  |  |
Increase in valuation allowance | $ 52,300 | $ 15,800 |
Unrecognized tax benefits disclosures |  |  |
Unrecognized tax benefits, interest and penalties accrued | 0 | 0 |
Schedule of components of loss before income taxes |  |  |
US | (100,278) | (89,581) | $ (57,294)
Foreign | (19,876) |  |
Loss before income taxes | (120,154) | (89,581) | (57,294)
Current: |  |  |
State | (2,015) | (10,422) | (1,221)
Foreign | 44 |  |
Total current | (1,971) | (10,422) | (1,221)
Deferred: |  |  |
Total | $ (1,971) | $ (10,422) | $ (1,221)
Differences between the U.S. federal statutory tax rate and effective tax rate |  |  |
Statutory federal tax rate (as a percent) | 34.00% | 34.00% | 34.00%
Permanent items (as a percent) | (4.00%) | (3.00%) | 0.00%
State income taxes, net of federal benefit (as a percent) | 4.00% | (7.00%) | 7.00%
R&D and other tax credits | 12.00% | 5.00% | 7.00%
Foreign income taxes (as a percent) | (1.00%) | 0.00% | 0.00%
Change in state tax rate (as a percent) | 0.00% | 0.00% | 2.00%
Change in valuation allowance (as a percent) | (43.00%) | (17.00%) | (49.00%)
Other (as a percent) | 0.00% | 0.00% | 1.00%
Effective tax rate (as a percent) | 2.00% | 12.00% | 2.00%
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ 195,052 | $ 160,758 |
General business credits | 33,360 | 18,150 |
Alternative minimum tax (AMT) credit | 418 | 418 |
Other | 10,569 | 7,863 |
Gross deferred tax assets | 239,399 | 187,189 |
Deferred tax liabilities: |  |  |
In-process research and development | (23,245) | (23,245) |
Deferred tax liabilities | (23,245) | (23,245) |
Net deferred tax assets | 216,154 | 163,944 |
Valuation allowance | (216,154) | (163,944) |
Federal |  |  |
NOL carryforwards |  |  |
Net operating loss carryforwards for income tax purposes | 538,700 |  |
Net operating loss carryforwards available to offset future taxable income | $ 360,400 |  |
Ownership change, as defined in Section 382, which could limit utilization of NOLs (as a percent) | 50.00% |  |
Period of time for measuring ownership changes under Section 382 | 3 years |  |
New Jersey |  |  |
NOL carryforwards |  |  |
State NOLs sold under the State of New Jersey's Technology Business Tax Certificate Transfer Program | $ 24,300 | 110,500 | $ 27,000
Cash proceeds from sale of NOLs, net of commissions | 2,000 | $ 10,400 | $ 1,200
Net operating loss carryforwards available to offset future taxable income | $ 115,900 |  |
Percentage Company is resident of NJ | 100 |  |

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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