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Operations and Summary of Significant Accounting Policies (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 USD ($) Independent_Dealers_Distributors | Dec. 31, 2016 USD ($)
Accounting Policies [Line Items] |  |
Number of Independent Dealers and Distributors (more than) | Independent_Dealers_Distributors | 4,200 |
Time period in which remaining installment balance is generally due | 12 months |
Revenue Recognition [Abstract] |  |
Interest Free Period on Receivables | 12 months |
Cash and Cash Equivalents [Abstract] |  |
Cash | $ 317.0 | $ 386.2
Cash Equivalents | $ 50.7 | $ 43.5
Equipment Sales | United States and Canada |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 12 months |
Replacement parts | United States and Canada |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 30 days |
Grain storage and protein production systems | United States and Canada |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 30 days |
Large Seasonal Products | United States and Canada |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 6 months |
Minimum |  |
Accounting Policies [Line Items] |  |
Ownership percentage | 20.00% |
Revenue Recognition [Abstract] |  |
Interest Income Period On Installment Agreements | 6 months |
Payment period on product sales | 1 month |
Interest Free Period on Receivables | 1 month |
Minimum | Equipment Sales | International |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 30 days |
Minimum | Replacement parts | International |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 30 days |
Maximum |  |
Revenue Recognition [Abstract] |  |
Interest Income Period On Installment Agreements | 12 months |
Payment period on product sales | 12 months |
Interest Free Period on Receivables | 12 months |
Maximum | United States and Canada |  |
Revenue Recognition [Abstract] |  |
Interest-free period and payment period on products | 24 months |
Maximum | Equipment Sales | International |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 180 days |
Maximum | Replacement parts | International |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 90 days |
Maximum | Large Seasonal Products |  |
Revenue Recognition [Abstract] |  |
Interest Free Period on Receivables | 24 months |
Maximum | Large Seasonal Products | International |  |
Revenue Recognition [Abstract] |  |
Payment period on product sales | 6 months |

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