Acquisitions (Details Textual) (USD $)	3 Months Ended	9 Months Ended		9 Months Ended
	Mar. 31, 2012	Sep. 30, 2012	Jan. 31, 2012	Sep. 30, 2012 Racine Federated, Inc. [Member]	May 23, 2012 Racine Federated, Inc. [Member]	May 22, 2012 Racine Federated, Inc. [Member]	Jan. 31, 2012 Racine Federated, Inc. [Member]	Jan. 26, 2011 Remag, AG [Member]
Business Acquisition (Textual) [Abstract]
Acquisition of outstanding common stock							100.00%
Cash							$ 57,300,000
Estimated adjustment in working capital							300,000
Other long-term liabilities				4,600,000
Line of Credit Facility, Maximum Borrowing Capacity					125,000,000	90,000,000
Line of Credit Period		3 years
Reduction in line of credit					16,700,000
Stock repurchase program	30,000,000
Issuance of commercial paper					70,000,000
Estimated useful life of intangible assets				15 years
Acquisition of Remag, AG								4,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash			1,529,000					900,000
Receivables			5,002,000					400,000
Inventory			7,602,000					400,000
Property, plant and equipment			3,774,000					2,000,000
Intangibles								1,800,000
Goodwill			26,305,000					200,000
Net other assets and liabilities								$ 100,000