Revenue (Textual) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected increase on sales and related costs calculated under the previous accounting guidance	$ 183.1	$ 345.0
Expected duration of performance obligations		1 year
Amortization period of contract costs		1 year
Assets, Total | ASC 606 Impact | Revenues under ASC 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Impact on Balance Sheet of adoption of new accounting guidance		$ 24.2
Liabilities, Total | ASC 606 Impact | Revenues under ASC 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Impact on Balance Sheet of adoption of new accounting guidance		$ 32.7
Service | Minimum | Transferred at Point in Time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected payment period		0 days
Service | Maximum | Transferred at Point in Time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected payment period		30 days
Specialty nutrients | Minimum | Transferred at Point in Time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected payment period		0 days
Specialty nutrients | Maximum | Transferred at Point in Time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected payment period		30 days
Co-products | Minimum | Transferred at Point in Time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected payment period		5 days
Co-products | Maximum | Transferred at Point in Time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Expected payment period		15 days