Income Taxes	6 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	10. Income Taxes The Company has evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets. Based on the Company’s history of operating losses, including a three-year cumulative loss position as of June 30, 2019 and December 31, 2018, the Company has concluded that it is more likely than not that the benefit of its deferred tax assets will not be realized. Accordingly, the Company has provided a full valuation allowance for its net deferred tax assets as of June 30, 2019 and December 31, 2018. During the three and six months ended June 30, 2019, the Company recognized income tax benefit of $0.1 million and $0.2 million, respectively, and income tax expense in other comprehensive income of $0.3 million and $0.7 million, respectively, related to net unrealized gains on available-for-sale debt securities. As of June 30, 2019, the Company had accrued $0.5 million related to this tax benefit, which is expected to be generated from losses in continuing operations in 2019 and is included in accrued expenses and other current liabilities on the consolidated balance sheet.

Income Taxes

6 Months Ended

Jun. 30, 2019

10. Income Taxes

The Company has evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets. Based on the Company’s history of operating losses, including a three-year cumulative loss position as of June 30, 2019 and December 31, 2018, the Company has concluded that it is more likely than not that the benefit of its deferred tax assets will not be realized. Accordingly, the Company has provided a full valuation allowance for its net deferred tax assets as of June 30, 2019 and December 31, 2018.

During the three and six months ended June 30, 2019, the Company recognized income tax benefit of $0.1 million and $0.2 million, respectively, and income tax expense in other comprehensive income of $0.3 million and $0.7 million, respectively, related to net unrealized gains on available-for-sale debt securities. As of June 30, 2019, the Company had accrued $0.5 million related to this tax benefit, which is expected to be generated from losses in continuing operations in 2019 and is included in accrued expenses and other current liabilities on the consolidated balance sheet.