CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Net sales:
Net sales	$ 1,476,235	$ 1,496,475	$ 1,202,898
Costs and expenses:
Selling, general and administrative expenses	274,701	270,064	258,644
Research and development	44,574	50,132	52,398
Amortization of purchased intangibles	59,309	42,106	27,064
Gain on sale of property, plant and equipment	(170)	(32,510)
Restructuring costs	16,599	15,386	5,018
Total costs and expenses	1,414,660	1,410,238	1,178,516
Operating income	61,575	86,237	24,382
Other income (expenses):
Interest and dividend income	7,522	6,519	1,615
Interest expense	(27,685)	(20,453)	(10,424)
Loss on extinguishment of debt	(16,090)
Other income (expense), net	(28,767)	(19,957)	(687)
Income (loss) from continuing operations before income taxes	(3,445)	52,346	14,886
Income tax provision (benefit)	(6,380)	11,040	7,093
Income from continuing operations	2,935	41,306	7,793
Net income (loss) from discontinued operations	436	(1,423)	4,243
Net income	3,371	39,883	12,036
Less noncontrolling interest in net income (loss) of VIE	6,592	(9,811)	(274)
Net income (loss) attributable to Cubic	(3,221)	49,694	12,310
Amounts attributable to Cubic:
Net income (loss) from continuing operations	(3,657)	51,117	8,067
Net income (loss) from discontinued operations	436	(1,423)	4,243
Net income (loss) attributable to Cubic	$ (3,221)	$ 49,694	$ 12,310
Basic
Continuing operations attributable to Cubic (in dollars per share)	$ (0.12)	$ 1.68	$ 0.30
Discontinued operations (in dollars per share)	0.01	(0.05)	0.16
Basic earnings per share attributable to Cubic (in dollars per share)	(0.10)	1.63	0.45
Diluted
Continuing operations attributable to Cubic (in dollars per share)	(0.12)	1.67	0.29
Discontinued operations (in dollars per share)	0.01	(0.05)	0.16
Diluted earnings (loss) per share attributable to Cubic (in dollars per share)	$ (0.10)	$ 1.62	$ 0.45
Weighted average shares used in per share calculations:
Basic (in shares)	31,299	30,495	27,229
Diluted (in shares)	31,299	30,606	27,351
Products
Net sales:
Net sales	$ 947,765	$ 1,011,069	$ 704,941
Costs and expenses:
Costs	678,840	732,137	472,698
Services
Net sales:
Net sales	528,470	485,406	497,957
Costs and expenses:
Costs	$ 340,807	$ 332,923	$ 362,694