Income Taxes	6 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	11. INCOME TAXES Income tax benefit for the three months ended June 30, 2019 and 2018 was $0.4 million, and income tax benefit for the six months ended June 30, 2019 and 2018 was $0.5 million and $0.2 million, respectively. The income tax benefit for the three and six months ended June 30, 2019 and 2018, was primarily attributable to non-U.S. tax benefit associated with the Company's non-U.S. operation. Based on the available objective evidence during the three months ended June 30, 2019, the Company believes it is more likely than not that the tax benefits of the U.S. losses incurred may not be realized. Accordingly, the Company recorded a full valuation allowance against the tax benefits of the U.S. losses incurred. The primary difference between the effective tax rate and the statutory tax rate relates to the valuation allowance on the Company’s U.S. losses. A valuation allowance is provided when it is more likely than not that some portion of the deferred tax assets will not be realized through future operations. As a result of the Company’s analysis of all available objective evidence, both positive and negative, as of June 30, 2019, management believes it is more likely than not that the deferred tax assets will not be fully realizable. Accordingly, the Company has provided a full valuation allowance against its deferred tax assets with the exception of deferred tax assets related to foreign entities in the U.K., China, and Denmark.

Income Taxes

6 Months Ended

Jun. 30, 2019

11. INCOME TAXES

Income tax benefit for the three months ended June 30, 2019 and 2018 was $0.4 million, and income tax benefit for the six months ended June 30, 2019 and 2018 was $0.5 million and $0.2 million, respectively. The income tax benefit for the three and six months ended June 30, 2019 and 2018, was primarily attributable to non-U.S. tax benefit associated with the Company's non-U.S. operation. Based on the available objective evidence during the three months ended June 30, 2019, the Company believes it is more likely than not that the tax benefits of the U.S. losses incurred may not be realized. Accordingly, the Company recorded a full valuation allowance against the tax benefits of the U.S. losses incurred. The primary difference between the effective tax rate and the statutory tax rate relates to the valuation allowance on the Company’s U.S. losses.

A valuation allowance is provided when it is more likely than not that some portion of the deferred tax assets will not be realized through future operations. As a result of the Company’s analysis of all available objective evidence, both positive and negative, as of June 30, 2019, management believes it is more likely than not that the deferred tax assets will not be fully realizable. Accordingly, the Company has provided a full valuation allowance against its deferred tax assets with the exception of deferred tax assets related to foreign entities in the U.K., China, and Denmark.