Restatement of Condensed Consolidated Financial Statements (Details 3) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net sales:
Products	$ 136,649	$ 127,682	$ 405,419	$ 429,436
Services	203,708	209,544	596,567	591,195
Total net sales	340,357	337,226	1,001,986	1,020,631
Costs and expenses:
Products	108,301	91,011	305,245	310,043
Services	156,726	164,278	480,906	461,669
Selling, general and administrative	46,489	44,130	131,508	126,393
Restructuring costs	24	114	227	6,198
Research and development	3,949	6,426	13,822	19,346
Amortization of purchased intangibles	5,653	4,362	17,056	12,192
Total costs and expenses	321,142	310,321	948,764	935,841
Operating income	19,215	26,905	53,222	84,790
Other income (expense):
Interest and dividend income	595	530	958	1,279
Interest expense	(1,504)	(925)	(3,117)	(2,447)
Other income (expense) - net	(1,098)	(813)	(1,058)	(764)
Income before income taxes	17,208	25,697	50,005	82,858
Income taxes	4,992	7,292	13,240	20,437
Net income	12,216	18,405	36,765	62,421
Less noncontrolling interest in income of VIE	10	24	79	149
Net income attributable to Cubic	12,206	18,381	36,686	62,272
Net income per share attributable to Cubic:
Basic (in dollars per share)	$ 0.46	$ 0.69	$ 1.37	$ 2.33
Diluted (in dollars per share)	$ 0.45	$ 0.69	$ 1.36	$ 2.33
Dividends per common share (in dollars per share)			$ 0.12	$ 0.12
Weighted average shares used in per share calculations:
Basic (in shares)	26,789	26,736	26,786	26,736
Diluted (in shares)	26,921	26,762	26,901	26,745
Previously Reported
Net sales:
Products		131,557		432,226
Services		208,888		585,895
Total net sales		340,445		1,018,121
Costs and expenses:
Products		93,946		311,964
Services		164,458		462,075
Selling, general and administrative		44,130		126,447
Restructuring costs		114		6,198
Research and development		6,426		19,346
Amortization of purchased intangibles		4,362		12,192
Total costs and expenses		313,436		938,222
Operating income		27,009		79,899
Other income (expense):
Interest and dividend income		530		1,279
Interest expense		(922)		(2,438)
Other income (expense) - net		(813)		(764)
Income before income taxes		25,804		77,976
Income taxes		7,416		19,859
Net income		18,388		58,117
Less noncontrolling interest in income of VIE		24		149
Net income attributable to Cubic		18,364		57,968
Net income per share attributable to Cubic:
Basic (in dollars per share)		$ 0.69		$ 2.17
Diluted (in dollars per share)		$ 0.69		$ 2.17
Dividends per common share (in dollars per share)				$ 0.12
Weighted average shares used in per share calculations:
Basic (in shares)		26,736		26,736
Diluted (in shares)		26,762		26,745
Adjustments
Net sales:
Products		(3,875)		(2,790)
Services		656		5,300
Total net sales		(3,219)		2,510
Costs and expenses:
Products		(2,935)		(1,921)
Services		(180)		(406)
Selling, general and administrative				(54)
Total costs and expenses		(3,115)		(2,381)
Operating income		(104)		4,891
Other income (expense):
Interest expense		(3)		(9)
Income before income taxes		(107)		4,882
Income taxes		(124)		578
Net income		17		4,304
Net income attributable to Cubic		$ 17		$ 4,304
Net income per share attributable to Cubic:
Basic (in dollars per share)		$ 0.00		$ 0.16
Diluted (in dollars per share)		$ 0.00		$ 0.16