Acquisitions - Other Acquisitions (Details) (USD $)	3 Months Ended		9 Months Ended				12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Series of Individually Immaterial Business Acquisitions	Sep. 30, 2011 Series of Individually Immaterial Business Acquisitions	Jun. 30, 2012 Business Acquisition, CIFAL [Member]	Jun. 30, 2012 Business Acquisition, Engetran [Member]	Jun. 30, 2012 Business Acquisition, Trail Com [Member]	Sep. 30, 2011 Business Acquisition, Innovative Molding [Member]	Sep. 30, 2011 Business Acquisition, Lamons India [Member]
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid					$ 22,000,000	$ 29,100,000				$ 27,000,000	$ 2,100,000
Business Acquisition, Deferred Purchase Price and Contingent Consideration					12,000,000
Net sales	$ 335,870,000	$ 277,660,000	$ 971,870,000	$ 824,310,000			$ 9,000,000	$ 6,000,000	$ 12,000,000