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Income Taxes (Notes) | 6 Months Ended
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Jun. 30, 2018
Income Tax [Abstract] |
Income Tax Disclosure [Text Block] | Income Taxes The Company has certain subsidiaries that have elected to be treated as corporations for U.S. federal income tax purposes. As of both June 30, 2018 and December 31, 2017, one such subsidiary had a deferred tax asset, resulting from a net operating loss carryforward, which was fully reserved through a valuation allowance. As of June 30, 2018, the deferred tax asset and the valuation allowance were valued at $4.6 million and $(4.6) million, respectively.

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- Definition Income Tax [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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