CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Net sales:
Net sales	$ 337,339	$ 278,586	$ 642,598	$ 526,977
Costs and expenses:
Selling, general and administrative expenses	66,195	63,773	129,181	125,453
Research and development	13,754	14,202	25,766	26,179
Amortization of purchased intangibles	12,395	6,484	22,960	13,835
Restructuring costs	1,757	256	3,749	1,751
Total costs and expenses	343,880	280,265	649,705	540,558
Operating loss	(6,541)	(1,679)	(7,107)	(13,581)
Other income (expenses):
Interest and dividend income	1,413	625	2,647	1,107
Interest expense	(4,531)	(2,911)	(8,563)	(5,585)
Other income (expense), net	(3,602)	2,028	(8,355)	1,950
Loss from continuing operations before income taxes	(13,261)	(1,937)	(21,378)	(16,109)
Income tax (benefit) provision	(3,831)	1,409	(1,334)	(1,328)
Loss from continuing operations	(9,430)	(3,346)	(20,044)	(14,781)
Net income from discontinued operations	(1,339)	1,335	(1,339)	2,984
Net loss	(10,769)	(2,011)	(21,383)	(11,797)
Less noncontrolling interest in loss of VIE	(1,377)		(5,404)
Net loss attributable to Cubic	(9,392)	(2,011)	(15,979)	(11,797)
Amounts attributable to Cubic:
Net loss from continuing operations	(8,053)	(3,346)	(14,640)	(14,781)
Net income (loss) from discontinued operations	(1,339)	1,335	(1,339)	2,984
Net loss attributable to Cubic	$ (9,392)	$ (2,011)	$ (15,979)	$ (11,797)
Basic
Continuing operations attributable to Cubic (in dollars per share)	$ (0.26)	$ (0.12)	$ (0.49)	$ (0.54)
Discontinued operations (in dollars per share)	(0.04)	0.05	(0.04)	0.11
Basic earnings per share attributable to Cubic (in dollars per share)	(0.30)	(0.07)	(0.54)	(0.43)
Diluted
Continuing operations attributable to Cubic (in dollars per share)	(0.26)	(0.12)	(0.49)	(0.54)
Discontinued operations (in dollars per share)	(0.04)	0.05	(0.04)	0.11
Diluted earnings per share attributable to Cubic (in dollars per share)	(0.30)	(0.07)	(0.54)	(0.43)
Dividends per common share (in dollars per share)	$ 0.14	$ 0.14	$ 0.14	$ 0.14
Weighted average shares used in per share calculations:
Basic (in shares)	31,150	27,223	29,821	27,215
Diluted (in shares)	31,150	27,223	29,821	27,215
Products
Net sales:
Net sales	$ 222,744	$ 157,445	$ 404,997	$ 289,188
Costs and expenses:
Costs	167,567	117,093	293,052	208,666
Services
Net sales:
Net sales	114,595	121,141	237,601	237,789
Costs and expenses:
Costs	$ 82,212	$ 78,457	$ 174,997	$ 164,674