CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 12,036	$ (11,209)	$ 1,735
Other comprehensive income (loss):
Adjustment to pension liability, net of tax	(5,540)	(13,180)	19,584
Foreign currency translation	(8,126)	1,440	(47,872)
Change in unrealized gains/losses from cash flow hedges:
Change in fair value of cash flow hedges, net of tax	34	(1,071)	464
Adjustment for net gains/losses realized and included in net income, net of tax	929	(358)	(989)
Total change in unrealized gains/losses realized from cash flow hedges, net of tax	963	(1,429)	(525)
Total other comprehensive income (loss)	(1,623)	13,191	(67,981)
Total comprehensive income (loss)	10,413	1,982	(66,246)
Noncontrolling interest in comprehensive loss of consolidated VIE, net of tax	(274)
Comprehensive income (loss) attributable to Cubic, net of tax	$ 10,687	$ 1,982	$ (66,246)