Business Acquisitions - Narrative (Details) CAD in Thousands, $ in Thousands, € in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2016 CAD	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 EUR (€)	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)
Business Acquisition [Line Items]
Cash Paid for Acquisitions	$ 0				$ 1,384
Goodwill	81,683		$ 80,804
Business Combination Transaction-Related Expenses	$ 9,100
Mining [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions				$ 1,900
Verkol [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions								€ 37.7	$ 41,400
Long-Term Debt								2.2		$ 2,400
Post Closing Adjustment						€ 1.3	$ 1,400
Cash Acquired								€ 14.1		$ 15,400
Lubricor [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions		CAD 16,000	$ 12,000