Acquisitions, Price Allocation (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Sep. 30, 2011
Business Acquisition Allocation Details [Abstract]
Business acquisition cash	$ 2	$ 0
Business acquisition receivables	22,373	4,041
Business acquisition inventory	27,759	3,594
Business acquisition purchase price allocation other current assets	105	0
Business acquisition property and equipment	8,882	1,900
Business acquisition goodwill	12,415	1,823
Business acquisition intangibles	15,760	140
Business acquisition investments	199	0
Total assets acquired	87,495	11,498
Business acquisition accounts payable	25,026	4,498
Busniess acquisition accrued expenses	1,591	0
Total liabilities assumed	26,617	4,498
Net assets acquired	$ 60,878	$ 7,000