Financing Arrangements - Narrative (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) financial_covenant	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Financing Arrangements (Textual) [Abstract]
Short-term Debt	$ 62,000,000	$ 7,400,000
Debt Instrument, Interest Rate During Period	1.10%	3.10%	3.20%
Weighted average interest rate on short-term debt, outstanding	0.90%	1.39%
Debt instrument yield rate	1.05%	0.20%	0.96%
Total Long-term debt	$ 595,700,000	$ 522,700,000
Maturities of long-term debt in 2016	15,100,000
Maturities of long-term debt in 2017	5,000,000
Maturities on long-term debt in 2018	0
Maturities of long-term debt in 2019	0
Maturities of long-term debt in 2020	75,200,000
Interest paid	32,100,000	34,400,000	$ 31,000,000
Interest capitalized	0	1,600,000	12,700,000
Rent expense under operating leases	33,500,000	33,000,000	$ 35,600,000
Future minimum lease payments for noncancelable operating leases 2015	142,200,000
Operating Leases, Future Minimum Payments 2016	35,100,000
Operating Leases, Future Minimum Payments, Due in Two Years	29,400,000
Operating Leases, Future Minimum Payments, Due in Three Years	24,400,000
Operating Leases, Future Minimum Payments, Due in Four Years	20,800,000
Operating Leases, Future Minimum Payments, Due in Five Years	18,500,000
Future minimum lease payments for noncancelable operating leases thereafter	14,000,000
Senior Unsecured Notes - Variable Rate [Member]
Financing Arrangements (Textual) [Abstract]
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries	424,800,000
Total Long-term debt	$ 75,200,000	$ 0
Senior Unsecured Notes - 3.875% [Member]
Financing Arrangements (Textual) [Abstract]
Debt Instruments, Maturity Date	Sep. 01, 2024	Sep. 01, 2024
Total Long-term debt	$ 345,400,000	$ 346,400,000
Foreign Subsidiary [Member]
Financing Arrangements (Textual) [Abstract]
Guarantor Obligations, Maximum Exposure, Undiscounted	4,400,000
Line of Credit Accounts Receivable Securitization [Member]
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	100,000,000
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries	5,600,000
Line of Credit Facility, Fair Value of Amount Outstanding	$ 49,000,000	0
Debt Instruments, Maturity Date	Nov. 30, 2018
Senior Credit Facility [Member]
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	$ 500,000,000
Number of Financial Covenant under senior Credit Facility | financial_covenant	2
Debt Instruments, Maturity Date	Jun. 19, 2020
Line of Credit [Member] | Foreign Subsidiary [Member]
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	$ 217,900,000
Short-term Debt	13,000,000	$ 7,400,000
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries	200,500,000
Line of Credit [Member] | Line of Credit Accounts Receivable Securitization [Member]
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	$ 54,600,000