GOODWILL AND PURCHASED INTANGIBLE ASSETS (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Purchased intangible assets
Amortization of intangible assets	$ 27,550	$ 22,602	$ 16,680
Gross Carrying Amount	185,016	148,702
Accumulated Amortization	(112,080)	(85,084)
Net Carrying Amount	72,936	63,618
Expected amortization for purchased intangibles for each of the next five years
2016	21,552
2017	16,348
2018	12,999
2019	8,516
2020	4,626
Thereafter	8,895
Total expected amortization for purchased intangibles	72,936
Contract and program intangibles
Purchased intangible assets
Gross Carrying Amount	156,847	121,340
Accumulated Amortization	(96,916)	(73,234)
Net Carrying Amount	59,931	48,106
Other purchased intangibles
Purchased intangible assets
Gross Carrying Amount	28,169	27,362
Accumulated Amortization	(15,164)	(11,850)
Net Carrying Amount	13,005	$ 15,512
Transportation Systems
Expected amortization for purchased intangibles for each of the next five years
2016	7,358
2017	6,306
2018	5,251
2019	2,986
2020	958
Thereafter	3,043
Total expected amortization for purchased intangibles	25,902
Cubic Global Defense Systems
Expected amortization for purchased intangibles for each of the next five years
2016	9,480
2017	7,590
2018	5,973
2019	4,346
2020	2,878
Thereafter	1,514
Total expected amortization for purchased intangibles	31,781
Cubic Global Defense Services
Expected amortization for purchased intangibles for each of the next five years
2016	4,714
2017	2,452
2018	1,775
2019	1,184
2020	790
Thereafter	4,338
Total expected amortization for purchased intangibles	$ 15,253