Annual report pursuant to Section 13 and 15(d)

Income Taxes - Difference in Federal and Effective Tax Rate (Details)

v3.6.0.2
Income Taxes - Difference in Federal and Effective Tax Rate (Details)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Summary of difference between the federal statutory tax rate and the effective tax rate      
Federal statutory rate 35.00% 35.00% 35.00%
State income taxes, net of federal benefit 5.20% 2.80% 2.50%
Foreign income tax 1.20% (7.80%) (10.30%)
Research and development tax credits 5.40% (0.00%) 1.10%
Non-Deductible components of Convertible Debt 2.20% (9.40%) (3.80%)
Valuation allowance 9.50% 61.10% (25.30%)
Rate change effect 21.20% 0.00% 0.00%
Non-deductible foreign stock compensation (1.90%) (0.70%) 0.00%
Other (8.70%) (1.00%) 0.80%
Total 69.10% 80.00% 0.00%