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Income Taxes (Notes)	3 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense was $2 thousand for the three months ended December 31, 2018 compared to income tax expense of $1.2 million in the same period of 2017 due primarily to the enactment of the Tax Cuts and Jobs Act. The income tax expense for the three months ended December 31, 2018 was due to the tax expense related to FASB Interpretation No. 48 ("FIN 48") Accounting for Uncertainties in Income Taxes. The U.K. did not have any tax expense in the first quarter of fiscal year 2019 due to the utilization of a portion of its net tax operating loss. The provisions above are estimates, and accordingly, changes to these estimates will be recorded in subsequent periods as more information and guidance becomes available.

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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

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