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Financing Arrangements (Details Textual) - USD ($) $ in Millions |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 18, 2017 | Sep. 07, 2017 | Jul. 03, 2017 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Line of Credit Facility [Line Items] |  |  |  |  |  |
Short-term Debt |  |  |  | $ 41.1 |  | $ 19.2
Long-term Fixed-rate Debt, Carrying Value |  |  |  | 684.3 |  | 507.3
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Proceeds from Issuance of Long-term Debt |  |  |  | 862.7 | $ 275.5 |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  |  | $ 964.8 |  | 640.0
Debt Instrument, Interest rate |  |  |  | 2.02% |  |
Accounts Receivable, less allowances (2015 - $17.2 million; 2014 - $13.7 million |  |  |  | $ 542.2 |  | 438.0
Series A Medium Term Note [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  |  | $ 159.5 |  | 159.5
Debt Instrument, Maturity Date |  |  |  | May 01, 2028 |  |
Senior Unsecured Notes - 3.875% [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  |  | $ 346.6 |  | 345.9
Debt Instrument, Interest rate |  |  |  | 3.875% |  |
Debt Instrument, Maturity Date |  |  |  | Sep. 01, 2024 |  |
Senior Unsecured Notes - Variable Rate [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Maximum borrowing capacity under line of credit |  |  |  | $ 500.0 |  |
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries |  |  |  | $ 408.8 |  |
Line of credit expiration date |  |  |  | Jun. 19, 2020 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  |  | $ 91.2 |  | $ 83.8
Debt Instrument, Interest rate |  |  |  | 1.59% |  | 1.50%
Debt Instrument, Maturity Date |  |  |  | Jun. 19, 2020 |  |
Euro Senior Unsecured Notes - 2.02% [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  |  | $ 176.5 |  | $ 0.0
Debt Instrument, Interest rate |  |  |  | 2020000.00% |  |
Debt Instrument, Maturity Date |  |  |  | Sep. 07, 2027 |  |
Foreign Subsidiary [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Borrowings guarantees |  |  |  | $ 2.0 |  |
Line of Credit 2027 Notes [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Issuance Date |  | Sep. 07, 2017 |  |  |  |
Proceeds from Issuance of Long-term Debt |  |  |  | 150.0 |  |
Debt Instrument, Maturity Date |  | Sep. 07, 2027 |  |  |  |
Line of Credit Accounts Receivable Securitization [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Maximum borrowing capacity under line of credit |  |  |  | 100.0 |  |
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries |  |  |  | $ 5.5 |  |
Line of credit expiration date |  |  |  | Nov. 30, 2018 |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  | $ 80.3 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  |  | 74.8 |  |
Line of Credit 2020 [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Issuance Date | Sep. 18, 2017 |  |  |  |  |
Proceeds from Issuance of Long-term Debt |  |  |  | 100.0 |  |
Debt Instrument, Maturity Date | Sep. 18, 2020 |  |  |  |  |
Line of Credit [Member] | Foreign Subsidiary [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Short-term Debt |  |  |  | 35.5 |  | $ 19.2
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Maximum borrowing capacity under line of credit |  |  |  | 250.0 |  |
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries |  |  |  | $ 212.5 |  |
Line of Credit Accounts Receivable Securitization [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  |  |  | 2.07% |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Debt Instrument, Interest rate |  |  |  | 2.07% |  | 1.65%
Variable Rate Lines of Credit [Member] | Foreign Subsidiary [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Line of Credit stated variable interest rate, High Range |  |  |  | 1.75% |  | 0.50%
Groeneveld [Member] |  |  |  |  |  |
Financing Arrangements (Textual) [Abstract] |  |  |  |  |  |
Business Acquisition, Effective Date of Acquisition |  |  | Jul. 03, 2017 |  |  |

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