SUMMARY OF QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Details 3) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Net sales:
Products	$ 132,874	$ 127,682	$ 167,036	$ 134,718	$ 171,632	$ 194,613	$ 156,891	$ 154,192	$ 562,310	$ 677,328	$ 601,093
Services	207,902	209,544	201,573	180,078	197,623	176,529	186,939	165,665	799,097	726,756	700,491
Total net sales	340,776	337,226	368,609	314,796	369,255	371,142	343,830	319,857	1,361,407	1,404,084	1,301,584
Costs and expenses:
Products	115,750	91,011	119,145	99,887	121,479	123,072	107,432	114,195	425,793	466,178	418,504
Services	167,851	164,278	153,320	144,071	163,059	153,640	145,696	131,567	629,520	593,962	564,765
Selling, general and administrative	38,837	44,130	41,320	40,943	43,179	42,751	43,039	35,220	165,230	164,189	159,791
Restructuring costs	1,941	114	6,084						8,139
Impairment of goodwill	50,865								50,865
Research and development	5,099	6,426	7,098	5,822	7,327	8,427	8,072	4,896	24,445	28,722	25,260
Amortization of purchased intangibles	4,488	4,362	4,266	3,564	3,471	3,650	3,668	4,039	16,680	14,828	14,681
Total costs and expenses	384,831	310,321	331,233	294,287	338,515	331,540	307,907	289,917	1,320,672	1,267,879	1,183,001
Operating income	(44,055)	26,905	37,376	20,509	30,740	39,602	35,923	29,940	40,735	136,205	118,583
Other income (expenses):
Interest and dividend income	297	530	312	437	571	697	964	762	1,576	2,994	2,568
Interest expense	(980)	(925)	(657)	(865)	(664)	(234)	(344)	(360)	(3,427)	(1,602)	(1,541)
Other income (expense), net	1,651	(813)	(53)	102	271	(950)	122	923	887	366	863
Income before income taxes	(43,087)	25,697	36,978	20,183	30,918	39,115	36,665	31,265	39,771	137,963	120,473
Income taxes	(5,935)	7,292	7,276	5,869	8,951	11,667	10,758	8,956	14,502	40,332	34,119
Net income	(37,152)	18,405	29,702	14,314	21,967	27,448	25,907	22,309	25,269	97,631	86,354
Less noncontrolling interest in income of VIE	34	24	52	73	55	53	51	45	183	204	310
Net income attributable to Cubic	(37,186)	18,381	29,650	14,241	21,912	27,395	25,856	22,264	25,086	97,427	86,044
Net Income per share attributable to Cubic:
Basic (in dollars per share)	$ (1.39)	$ 0.69	$ 1.11	$ 0.53	$ 0.82	$ 1.02	$ 0.97	$ 0.83	$ 0.94	$ 3.64	$ 3.22
Diluted (in dollars per share)	$ (1.39)	$ 0.69	$ 1.11	$ 0.53	$ 0.82	$ 1.02	$ 0.97	$ 0.83	$ 0.94	$ 3.64	$ 3.22
Weighted Average shares used in per share calculations:
Basic (in shares)	26,736	26,736	26,736	26,736	26,736	26,736	26,736	26,736	26,736,000	26,736,000	26,736,000
Diluted (in shares)	26,736	26,762	26,736	26,736	26,736	26,736	26,736	26,736	26,760,000	26,736,000	26,736,000
Previously Reported
Net sales:
Products	136,216	131,557	164,968	135,701	164,458	189,743	155,776	153,310	568,442	663,287	600,933
Services	206,386	208,888	199,337	177,670	195,229	175,654	183,869	163,456	792,281	718,208	694,648
Total net sales	342,602	340,445	364,305	313,371	359,687	365,397	339,645	316,766	1,360,723	1,381,495	1,295,581
Costs and expenses:
Products	117,530	93,946	117,123	100,895	113,009	118,431	106,684	113,449	429,494	451,573	418,279
Services	167,757	164,458	153,766	143,851	164,060	153,552	145,642	131,408	629,832	594,662	564,062
Selling, general and administrative	38,429	44,130	41,320	40,997	42,678	42,751	43,039	35,220	164,876	163,688	159,791
Restructuring costs	1,941	114	6,084						8,139
Impairment of goodwill	50,865								50,865
Research and development	5,099	6,426	7,098	5,822	7,327	8,427	8,072	4,896	24,445	28,722	25,260
Amortization of purchased intangibles	4,488	4,362	4,266	3,564	3,471	3,650	3,668	4,039	16,680	14,828	14,681
Total costs and expenses	386,109	313,436	329,657	295,129	330,545	326,811	307,105	289,012	1,324,331	1,253,473	1,182,073
Operating income	(43,507)	27,009	34,648	18,242	29,142	38,586	32,540	27,754	36,392	128,022	113,508
Other income (expenses):
Interest and dividend income	297	530	312	437	571	697	964	762	1,576	2,994	2,568
Interest expense	(977)	(922)	(654)	(862)	(651)	(221)	(331)	(347)	(3,415)	(1,550)	(1,461)
Other income (expense), net	397	(813)	(53)	102	726	(950)	122	923	(367)	821	1,662
Income before income taxes	(43,790)	25,804	34,253	17,919	29,788	38,112	33,295	29,092	34,186	130,287	116,277
Income taxes	(5,654)	7,416	7,043	5,400	8,645	11,338	9,847	8,353	14,205	38,183	32,373
Net income	(38,136)	18,388	27,210	12,519	21,143	26,774	23,448	20,739	19,981	92,104	83,904
Less noncontrolling interest in income of VIE	34	24	52	73	55	53	51	45	183	204	310
Net income attributable to Cubic	(38,170)	18,364	27,158	12,446	21,088	26,721	23,397	20,694	19,798	91,900	83,594
Net Income per share attributable to Cubic:
Basic (in dollars per share)	$ (1.43)	$ 0.69	$ 1.02	$ 0.47	$ 0.79	$ 1.00	$ 0.88	$ 0.77	$ 0.74	$ 3.44	$ 3.13
Diluted (in dollars per share)	$ (1.43)	$ 0.69	$ 1.02	$ 0.47	$ 0.79	$ 1.00	$ 0.88	$ 0.77	$ 0.74	$ 3.44	$ 3.13
Weighted Average shares used in per share calculations:
Basic (in shares)	26,736	26,736	26,736	26,736	26,736	26,736	26,736	26,736	26,736,000	26,736,000	26,736,000
Diluted (in shares)	26,736	26,762	26,736	26,736	26,736	26,736	26,736	26,736	26,760,000	26,736,000	26,736,000
Adjustments
Net sales:
Products	(3,342)	(3,875)	2,068	(983)	7,174	4,870	1,115	882	(6,132)	14,041	160
Services	1,516	656	2,236	2,408	2,394	875	3,070	2,209	6,816	8,548	5,843
Total net sales	(1,826)	(3,219)	4,304	1,425	9,568	5,745	4,185	3,091	684	22,589	6,003
Costs and expenses:
Products	(1,780)	(2,935)	2,022	(1,008)	8,470	4,641	748	746	(3,701)	14,605	225
Services	94	(180)	(446)	220	(1,001)	88	54	159	(312)	(700)	703
Selling, general and administrative	408			(54)	501				354	501
Total costs and expenses	(1,278)	(3,115)	1,576	(842)	7,970	4,729	802	905	(3,659)	14,406	928
Operating income	(548)	(104)	2,728	2,267	1,598	1,016	3,383	2,186	4,343	8,183	5,075
Other income (expenses):
Interest expense	(3)	(3)	(3)	(3)	(13)	(13)	(13)	(13)	(12)	(52)	(80)
Other income (expense), net	1,254				(455)				1,254	(455)	(799)
Income before income taxes	703	(107)	2,725	2,264	1,130	1,003	3,370	2,173	5,585	7,676	4,196
Income taxes	(281)	(124)	233	469	306	329	911	603	297	2,149	1,746
Net income	984	17	2,492	1,795	824	674	2,459	1,570	5,288	5,527	2,450
Net income attributable to Cubic	$ 984	$ 17	$ 2,492	$ 1,795	$ 824	$ 674	$ 2,459	$ 1,570	$ 5,288	$ 5,527	$ 2,450
Net Income per share attributable to Cubic:
Basic (in dollars per share)	$ 0.04	$ 0.00	$ 0.09	$ 0.06	$ 0.03	$ 0.02	$ 0.09	$ 0.06	$ 0.20	$ 0.20	$ 0.09
Diluted (in dollars per share)	$ 0.04	$ 0.00	$ 0.09	$ 0.06	$ 0.03	$ 0.02	$ 0.09	$ 0.06	$ 0.20	$ 0.20	$ 0.09