Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Supply Agreement [Member]	Sep. 30, 2011 Supply Agreement [Member]	Jun. 30, 2012 Purchased Technology [Member]	Sep. 30, 2011 Purchased Technology [Member]	Sep. 30, 2011 Non-compete agreements [Member]	Jun. 30, 2012 Non-compete agreements [Member]	Jun. 30, 2012 Trade names [Member]	Sep. 30, 2011 Trade names [Member]
Intangible assets balances, subject to amortization
Gross Carrying Value, Beginning balance		$ 34,595			$ 34,595		$ 17,580	$ 17,580	$ 11,747	$ 10,272	$ 5,365	$ 4,170	$ 1,098	$ 5,437
Amortization, Gross Carrying Value
Acquisition										(1,500)
Foreign currency translation, Gross Carrying Value									9	(25)	(35)			(124)
Impairment - Gross Carrying Value											(1,160)			(4,215)
Gross Carrying Value, Ending balance	34,604				34,604		17,580	17,580	11,756	11,747	4,170	4,170	1,098	1,098
Accumulated Amortization, Beginning Balance		(18,748)			(18,748)		(6,052)	(4,881)	(7,759)	(6,318)	(3,666)	(4,170)	(767)	(938)
Amortization of intangible assets	(704)		(1,237)		(2,111)	(3,658)	(879)	(1,171)	(1,404)	(1,689)	(920)		(147)	(583)
Foreign currency translation Amortization									228	248			95	(1)
Impairment Amortization											416			755
Accumulated Amortization, Ending Balance	(20,855)				(20,855)		(6,931)	(6,052)	(8,935)	(7,759)	(4,170)	(4,170)	(819)	(767)
Net Carrying value, beginning balance		15,847			15,847		11,528	12,699	3,988	3,954	1,699		331	4,499
Amortization Carrying Value							879	1,171	1,404	1,689	920		147	583
Foreign currency translation Net Carrying Value									237	223	(35)		95	(125)
Impairment - Net Carrying Value											(744)			(3,460)
Net Carrying value, ending balance	$ 13,749				$ 13,749		$ 10,649	$ 11,528	$ 2,821	$ 3,988			$ 279	$ 331