Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. For the three months ended March 31, 2018 and 2017, the Company recorded an income tax benefits of $0.5 million and an income tax expense of $1.0 million respectively. The income tax benefit for the three months ended March 31, 2018, includes tax expense based on the projected effective tax rate for 2018, net of share-based award tax benefit recognized during the quarter. The income tax expense for the three months ended March 31, 2017 was primarily attributable to the gain related to the sale of the Skyfence business, offset in part by an intraperiod tax benefit allocation related to unrealized gains reported in other comprehensive income. Factors that impact the income tax provision include, but are not limited to, stock-based compensation expense, permanent tax adjustments, foreign operations and a valuation allowance against the Company’s domestic deferred tax assets.

Income Taxes

3 Months Ended

Mar. 31, 2018

9. Income Taxes

The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. For the three months ended March 31, 2018 and 2017, the Company recorded an income tax benefits of $0.5 million and an income tax expense of $1.0 million respectively. The income tax benefit for the three months ended March 31, 2018, includes tax expense based on the projected effective tax rate for 2018, net of share-based award tax benefit recognized during the quarter. The income tax expense for the three months ended March 31, 2017 was primarily attributable to the gain related to the sale of the Skyfence business, offset in part by an intraperiod tax benefit allocation related to unrealized gains reported in other comprehensive income.

Factors that impact the income tax provision include, but are not limited to, stock-based compensation expense, permanent tax adjustments, foreign operations and a valuation allowance against the Company’s domestic deferred tax assets.