Financing Arrangements (Details Textual) (USD $)			9 Months Ended				9 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Series A Medium Term Note [Member]	Sep. 30, 2014 Senior Unsecured Notes [Member]	Sep. 30, 2014 Senior Unsecured Notes - 3.875% [Member]	Sep. 30, 2014 Foreign Subsidiary [Member]	Sep. 30, 2014 Line of Credit Accounts Receivable Securitization [Member]	Apr. 28, 2014 Line of Credit Accounts Receivable Securitization [Member]	Sep. 30, 2014 Senior Credit Facility [Member]	Sep. 30, 2014 Line of Credit [Member] Foreign Subsidiary [Member]	Dec. 31, 2013 Line of Credit [Member] Foreign Subsidiary [Member]	Sep. 30, 2014 Variable Rate Lines of Credit [Member]	Dec. 31, 2013 Variable Rate Lines of Credit [Member]
Line of Credit Facility [Line Items]
Short-term Debt	$ 8,700,000	$ 18,600,000								$ 8,700,000	$ 18,600,000
Long-term Fixed-rate Debt, Carrying Value	529,400,000	441,600,000
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit							100,000,000	200,000,000	500,000,000	238,900,000
Borrowings outstanding									0
Borrowings guarantees						4,900,000
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries							87,100,000			225,300,000
Line of credit expiration date							Nov. 30, 2015		May 11, 2016
Line of credit stated variable interest rate, Low Range												0.65%	0.87%
Line of Credit stated variable interest rate, High Range												6.16%	4.86%
Total Long-term debt					$ 350,000,000
Number of Financial Covenant under senior Credit Facility									2
Debt Instrument, Interest rate				6.00%	3.875%
Fixed-rate Medium-Term Notes, Series A, Interest rate, Minimum			6.74%
Fixed-rate Medium-Term Notes, Series A, Interest rate, Maximum			7.76%
Debt Instruments, Maturity Date			May 01, 2028	Sep. 15, 2014	Sep. 01, 2024
Long-term Debt, Weighted Average Interest Rate				6.00%	3.875%