Income Taxes	6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	8. Income Taxes Income taxes are determined using an estimated annual effective tax rate applied against income, and then adjusted for the tax impacts of certain significant and discrete items. For the six months ended June 30, 2016, the Company treated the tax impact of the following as discrete events for which the tax effect was recognized separately from the application of the annual effective tax rate: tax benefits related to excess share-based payment in income tax expense resulting from the adoption of ASU 2016-09 as of January 1, 2016, changes to the beginning of the year valuation allowances and certain unrecognized tax benefits. See Note 1 – Description of Business and Basis of Presentation of the Notes to Unaudited Consolidated Financial Statements. The Company’s effective tax rate recorded for the six months ended June 30, 2016 was 29%. In accordance with the disclosure requirements as described in ASC Topic 740, Income Taxes, the Company has classified unrecognized tax benefits as non-current income tax liabilities, or a reduction in deferred tax assets, unless expected to be paid within one year. The Company’s continuing practice is to recognize interest and/or penalties related to income tax matters in income tax expense. The Company had an increase in gross unrecognized tax benefits of approximately $4.2 million during the six months ended June 30, 2016. The Company does not anticipate there will be a significant change in unrecognized tax benefits within the next 12 months. The Company is subject to routine compliance reviews on various tax matters around the world in the ordinary course of business. Currently, income tax audits are being conducted in the state of New York and the state of Louisiana. U.S. and most foreign jurisdictions remain subject to examination in all years due to prior year net operating losses and R&D credits.

Income Taxes

6 Months Ended

Jun. 30, 2016

8. Income Taxes

Income taxes are determined using an estimated annual effective tax rate applied against income, and then adjusted for the tax impacts of certain significant and discrete items. For the six months ended June 30, 2016, the Company treated the tax impact of the following as discrete events for which the tax effect was recognized separately from the application of the annual effective tax rate: tax benefits related to excess share-based payment in income tax expense resulting from the adoption of ASU 2016-09 as of January 1, 2016, changes to the beginning of the year valuation allowances and certain unrecognized tax benefits. See Note 1 – Description of Business and Basis of Presentation of the Notes to Unaudited Consolidated Financial Statements. The Company’s effective tax rate recorded for the six months ended June 30, 2016 was 29%.

In accordance with the disclosure requirements as described in ASC Topic 740, Income Taxes, the Company has classified unrecognized tax benefits as non-current income tax liabilities, or a reduction in deferred tax assets, unless expected to be paid within one year. The Company’s continuing practice is to recognize interest and/or penalties related to income tax matters in income tax expense. The Company had an increase in gross unrecognized tax benefits of approximately $4.2 million during the six months ended June 30, 2016. The Company does not anticipate there will be a significant change in unrecognized tax benefits within the next 12 months.

The Company is subject to routine compliance reviews on various tax matters around the world in the ordinary course of business. Currently, income tax audits are being conducted in the state of New York and the state of Louisiana. U.S. and most foreign jurisdictions remain subject to examination in all years due to prior year net operating losses and R&D credits.