Commitments and Contingencies (Details Textuals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Sep. 30, 2011	Dec. 31, 2010
Commitments and Contingencies (Textuals) [Abstract]
Products liability insurance	$ 500,000,000		$ 500,000,000
Amount of full satisfaction of contractual take-or-pay obligation	9,900,000		9,900,000
Accrued liability related to litigation			11,000,000
Accrual reduction related to Cost of Sales		1,100,000
Environment related cost, minimum	737,000		737,000
Environment related cost, maximum	2,209,000		2,209,000
Accrued environmental-related costs for future	1,369,000		1,369,000	1,403,000
Accrued environmental-related costs expected to be paid within next 12 months	100,000		100,000
Accrued environmental-related costs expected to be paid after 12 months	$ 1,269,000		$ 1,269,000