CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net loss	$ (7,278)	$ (16,585)
Other comprehensive income (loss):
Foreign currency translation	11,537	10,480
Change in unrealized gains/losses from cash flow hedges:
Change in fair value of cash flow hedges, net of tax	(45)	(1,185)
Adjustment for net gains/losses realized and included in net income, net of tax	(185)	49
Total change in unrealized gains/losses realized from cash flow hedges, net of tax	(230)	(1,136)
Total other comprehensive income	11,307	9,344
Total comprehensive income (loss)	4,029	(7,241)
Noncontrolling interest in comprehensive income of consolidated VIE, net of tax	5,717	3,990
Comprehensive loss attributable to Cubic, net of tax	$ (1,688)	$ (11,231)