Acquisitions, Price Allocation (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Business Acquisition Allocation Details [Abstract]
Business acquisition cash	$ 0	$ 1
Business acquisition receivables	3,548	22,374
Business acquisition inventory	1,911	27,701
Business acquisition purchase price allocation other current assets	0	105
Business acquisition property and equipment	0	8,882
Business acquisition goodwill	9,225	12,473
Business acquisition intangibles	4,780	15,760
Business acquisition investments	0	199
Total assets acquired	19,464	87,495
Business acquisition accounts payable	2,458	25,026
Busniess acquisition accrued expenses	0	1,591
Total liabilities assumed	2,458	26,617
Net assets acquired	$ 17,006	$ 60,878