Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 6,825	$ 240	$ 18,415	$ 15,831
Other comprehensive income (loss):
Foreign currency translation adjustment	(1,912)	1,363	(695)	452
Unrealized gain (loss) on cash flow hedge	109	(164)	874	1,524
Income taxes related to items of other comprehensive income	(28)	39	(247)	(574)
Other comprehensive income (loss), net of tax	(1,831)	1,238	(68)	1,402
COMPREHENSIVE INCOME	$ 4,994	$ 1,478	$ 18,347	$ 17,233

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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