Business (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2016
Income Taxes [Abstract]
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations		$ 3,689
Valuation Allowance, Deferred Tax Asset, Change in Amount			$ 5,002
Labor And Related Expense	$ 2,476	3,685
Adjustments For New Accounting Principle Early Adoption [Member] | Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncement Early Adoption [Line Items]
New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets 1	58	58
Adjustment To Retained Earnings Recognized Deferred Tax Asset Related Stock Compensation Expense	$ 362	$ 362