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Basis for Presentation (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2013
Net sales:
Products	$ 128,612us-gaap_SalesRevenueGoodsNet	$ 121,981us-gaap_SalesRevenueGoodsNet
Costs and expenses:
Products	104,424us-gaap_CostOfGoodsSold	86,759us-gaap_CostOfGoodsSold
Services	149,292us-gaap_CostOfServices	161,487us-gaap_CostOfServices
Selling, general and administrative	47,554	36,754
Costs and Expenses	311,309us-gaap_CostsAndExpenses	295,307us-gaap_CostsAndExpenses
Operating income	7,179us-gaap_OperatingIncomeLoss	11,830us-gaap_OperatingIncomeLoss
Income before income taxes	5,857	10,868
Income taxes	695us-gaap_IncomeTaxExpenseBenefit	2,439us-gaap_IncomeTaxExpenseBenefit
Net income (loss) attributable to Cubic	5,152	8,388
Adjustments
Net sales:
Products	1,264
Costs and expenses:
Products	138
Services	438
Selling, general and administrative	(1,385)
Costs and Expenses	(809)
Operating income	2,073		2,400	300
Income before income taxes	2,073
Income taxes	789
Net income (loss) attributable to Cubic	1,284
Adjustments \| Audit Investigation Error
Net sales:
Products	747
Costs and expenses:
Operating income	747
Income before income taxes	747
Income taxes	299
Net income (loss) attributable to Cubic	448
Adjustments \| Other Errors Member
Net sales:
Products	517
Costs and expenses:
Products	138
Services	438
Selling, general and administrative	(1,385)
Costs and Expenses	(809)
Operating income	1,326
Income before income taxes	1,326
Income taxes	490
Net income (loss) attributable to Cubic	$ 836