Income Taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company accounts for income taxes in accordance with ASC 740, which requires an asset and liability approach for measuring deferred taxes based on temporary differences between the financial statements and tax bases of assets and liabilities existing at each balance sheet date using enacted tax rates for the years in which taxes are expected to be paid or recovered. For the three months ended June 30, 2017 and 2016, the Company recorded a provision for income taxes of $1.0 million and $1.5 million, respectively. For the six months ended June 30, 2017 and 2016, the Company recorded a provision for income taxes of $1.5 million and $1.3 million, respectively. Included in the three and six month periods for 2016 is an allocation of income from LR8 of $0.5 million due to a reduction in the warranty reserve and a $1.1 million gain from the closeout of LR8 due to the purchase of our JV partner's interest for less than its carrying value, which resulted in a provision for income taxes of $0.6 million for the three and six month periods ended June 30, 2016 and did not impact our effective tax rate. The effective tax rate for the three and six months ended June 30, 2017 and 2016 differs from the 35% federal statutory tax rate due to state income taxes partially offset by the tax benefit of production activities. Each quarter we assess our deferred tax asset to determine whether all or any portion of the asset is more likely than not unrealizable under ASC 740. We are required to establish a valuation allowance for any portion of the asset we conclude is more likely than not unrealizable. Our assessment considers, among other things, the nature, frequency and severity of prior cumulative losses, forecasts of future taxable income, the duration of statutory carryforward periods, our utilization experience with operating loss and tax credit carryforwards and the planning alternatives, to the extent these items are applicable. The Company classifies any interest and penalties related to income taxes assessed as part of income tax expense. The Company has concluded that there were no significant uncertain tax positions requiring recognition in its financial statements, nor has the Company been assessed interest or penalties by any major tax jurisdictions related to any open tax periods.

Income Taxes

The Company accounts for income taxes in accordance with ASC 740, which requires an asset and liability approach for measuring deferred taxes based on temporary differences between the financial statements and tax bases of assets and liabilities existing at each balance sheet date using enacted tax rates for the years in which taxes are expected to be paid or recovered.

For the three months ended June 30, 2017 and 2016, the Company recorded a provision for income taxes of $1.0 million and $1.5 million, respectively. For the six months ended June 30, 2017 and 2016, the Company recorded a provision for income taxes of $1.5 million and $1.3 million, respectively. Included in the three and six month periods for 2016 is an allocation of income from LR8 of $0.5 million due to a reduction in the warranty reserve and a $1.1 million gain from the closeout of LR8 due to the purchase of our JV partner's interest for less than its carrying value, which resulted in a provision for income taxes of $0.6 million for the three and six month periods ended June 30, 2016 and did not impact our effective tax rate. The effective tax rate for the three and six months ended June 30, 2017 and 2016 differs from the 35% federal statutory tax rate due to state income taxes partially offset by the tax benefit of production activities.

Each quarter we assess our deferred tax asset to determine whether all or any portion of the asset is more likely than not unrealizable under ASC 740. We are required to establish a valuation allowance for any portion of the asset we conclude is more likely than not unrealizable. Our assessment considers, among other things, the nature, frequency and severity of prior cumulative losses, forecasts of future taxable income, the duration of statutory carryforward periods, our utilization experience with operating loss and tax credit carryforwards and the planning alternatives, to the extent these items are applicable.

The Company classifies any interest and penalties related to income taxes assessed as part of income tax expense. The Company has concluded that there were no significant uncertain tax positions requiring recognition in its financial statements, nor has the Company been assessed interest or penalties by any major tax jurisdictions related to any open tax periods.