Business Acquisitions - Narrative (Details) $ in Thousands, ₨ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)	Dec. 31, 2017 INR (₨)	Dec. 31, 2017 USD ($)	Jun. 30, 2017 CAD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 CAD ($)	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Cash Paid for Acquisitions	$ 500					$ 0
Goodwill	86,708		$ 86,034
Business Combination Transaction-Related Expenses	6,100					$ 9,100
Other current liabilities	33,350		29,384
Mining North America [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions	500
Other current liabilities	500
Mining North America [Member] | Trademarks, Formulations and Product Technology [Member]
Business Acquisition [Line Items]
Intangibles	$ 1,000
Intangible Assets, Amortizable Life	10 years
Lubricor [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions							$ 16.0	$ 12,000
India [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions		₨ 2,025.0	$ 31,800
Minority Interest Ownership Percentage			45.00%
Metal Working North America [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions				$ 7.3	$ 5,400