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Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes The year-to-date effective tax rate for the six months ended June 30, 2019 differed significantly from our statutory rate primarily due to the reduction of a valuation allowance, which was recorded to offset the tax effect of the increase in book income in the six months ended June 30, 2019, as well as the release of an unrecognized tax benefit due to the settlement of a tax audit. Unrecognized Tax Benefits As of June 30, 2019, we believe it is reasonably possible that $1.9 million of our unrecognized tax benefits, including penalties, interest and discontinued operations, will be reduced prior to June 30, 2020 due to the settlement of audits or the expiration of statutes of limitations or both. However, due to the uncertain and complex application of the tax regulations, it is possible that the ultimate resolution of these matters may result in liabilities which could materially differ from this estimate.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

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