Income Taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes HPIH is taxed as a partnership for income tax purposes; as a result, it is not subject to entity-level federal or state income taxation but its members are liable for taxes with respect to their allocable shares of each company’s respective net taxable income. We are subject to U.S. corporate federal, state and local income taxes on our allocable share of net taxable income that is reflected in our consolidated financial statements. The effective tax rate for the three and six months ended June 30, 2017 was 28.7% and 7.9%, respectively. The effective tax rate for the three and six months ended June 30, 2016 was 11.2% and 12.3%, respectively. For the three and six months ended June 30, 2017 the provision for income taxes, respectively, was $2.8 million and $1.3 million, respectively. For the three and six months ended June 30, 2016 the provision for income taxes, respectively, was $537,000 and $921,000, respectively. Deferred taxes on our investment in HPIH are measured on the difference between the carrying amount of our investment in HPIH and the corresponding tax basis of this investment. We do not measure deferred taxes on differences within HPIH, as those differences inherently comprise our deferred taxes on our external investment in HPIH. Due to the ownership structure of HP, which is a taxable entity, it cannot join in a consolidated tax filing with HII. Consequently, its federal and state tax jurisdictions are separate from those of HII, which prevents deferred tax assets and liabilities of HII and HP from offsetting one another. The effective tax rate for HII, for the six months ended June 30, 2017, was mainly impacted by the tax benefit realized by the early adoption of ASU 2016-9. HP’s 2017 book loss generates a deferred tax benefit which is materially offset by a valuation allowance. As a result, due to the offsetting effect of HP’s pretax book loss and HII’s pretax book income when the two are combined, the deferred tax benefit from HP along with the benefit realized by HII’s early adoption of the accounting update results in a total combined effective tax rate of 7.9%. On a standalone basis, the effective tax rate for the three and six months ended June 30, 2017 for HII was 26.2% and 7.5%, respectively, while the effective tax rate for the each of the three and six months ended June 30, 2017 for HP was 3.6%. We account for uncertainty in income taxes using a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained upon audit, including resolution of related appeals or litigation processes, if any. The second step requires us to estimate and measure the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. Such amounts are subjective, as a determination must be made on the probability of various possible outcomes. We reevaluate uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit, and new audit activity. Such a change in recognition and measurement could result in recognition of a tax benefit or an additional tax provision. For the three and six months ended June 30, 2017 and 2016, respectively, we did not have a balance of gross unrecognized tax benefits, and as such, no amount would favorably affect the effective income tax rate in any future periods. We believe that there will not be a significant increase or decrease to the uncertain tax positions within 12 months of the reporting date. The Company accounts for interest and penalties associated with uncertain tax positions as a component of tax expense, and none were included in the Company’s financial statements as there are not uncertain tax positions outstanding as of June 30, 2017 and 2016, respectively. The Company’s 2013 through 2016 tax years remain subject to examination by tax authorities.

Income Taxes

HPIH is taxed as a partnership for income tax purposes; as a result, it is not subject to entity-level federal or state income taxation but its members are liable for taxes with respect to their allocable shares of each company’s respective net taxable income. We are subject to U.S. corporate federal, state and local income taxes on our allocable share of net taxable income that is reflected in our consolidated financial statements.

The effective tax rate for the three and six months ended June 30, 2017 was 28.7% and 7.9%, respectively. The effective tax rate for the three and six months ended June 30, 2016 was 11.2% and 12.3%, respectively. For the three and six months ended June 30, 2017 the provision for income taxes, respectively, was $2.8 million and $1.3 million, respectively. For the three and six months ended June 30, 2016 the provision for income taxes, respectively, was $537,000 and $921,000, respectively. Deferred taxes on our investment in HPIH are measured on the difference between the carrying amount of our investment in HPIH and the corresponding tax basis of this investment. We do not measure deferred taxes on differences within HPIH, as those differences inherently comprise our deferred taxes on our external investment in HPIH.

Due to the ownership structure of HP, which is a taxable entity, it cannot join in a consolidated tax filing with HII. Consequently, its federal and state tax jurisdictions are separate from those of HII, which prevents deferred tax assets and liabilities of HII and HP from offsetting one another. The effective tax rate for HII, for the six months ended June 30, 2017, was mainly impacted by the tax benefit realized by the early adoption of ASU 2016-9. HP’s 2017 book loss generates a deferred tax benefit which is materially offset by a valuation allowance. As a result, due to the offsetting effect of HP’s pretax book loss and HII’s pretax book income when the two are combined, the deferred tax benefit from HP along with the benefit realized by HII’s early adoption of the accounting update results in a total combined effective tax rate of 7.9%. On a standalone basis, the effective tax rate for the three and six months ended June 30, 2017 for HII was 26.2% and 7.5%, respectively, while the effective tax rate for the each of the three and six months ended June 30, 2017 for HP was 3.6%.

We account for uncertainty in income taxes using a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained upon audit, including resolution of related appeals or litigation processes, if any. The second step requires us to estimate and measure the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. Such amounts are subjective, as a determination must be made on the probability of various possible outcomes. We reevaluate uncertain tax positions on a quarterly basis. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit, and new audit activity. Such a change in recognition and measurement could result in recognition of a tax benefit or an additional tax provision.

For the three and six months ended June 30, 2017 and 2016, respectively, we did not have a balance of gross unrecognized tax benefits, and as such, no amount would favorably affect the effective income tax rate in any future periods. We believe that there will not be a significant increase or decrease to the uncertain tax positions within 12 months of the reporting date. The Company accounts for interest and penalties associated with uncertain tax positions as a component of tax expense, and none were included in the Company’s financial statements as there are not uncertain tax positions outstanding as of June 30, 2017 and 2016, respectively. The Company’s 2013 through 2016 tax years remain subject to examination by tax authorities.