Business Acquisitions - Narrative (Details) CAD in Thousands, $ in Thousands, € in Millions	3 Months Ended									6 Months Ended
	Jun. 30, 2017 CAD	Jun. 30, 2017 USD ($)	Dec. 31, 2016 CAD	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 EUR (€)	Sep. 30, 2015 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Business Acquisition [Line Items]
Cash Paid for Acquisitions										$ 5,363	$ 3,284
Goodwill		$ 84,762		$ 80,804						84,762
Business Combination Transaction-Related Expenses		4,300								13,400
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
Metalworking North America [Member]
Business Acquisition [Line Items]
Cash Paid for Acquisitions	CAD 7,300	5,400
Other Current Assets		600								600
Goodwill		1,800								1,800
Intangibles		$ 3,000								$ 3,000
Metalworking North America [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	10 years	10 years
Metalworking North America [Member] | Noncompete Agreements [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	5 years	5 years
Metalworking North America [Member] | Finite Lived Trademarks Formulations and Product Technology [Member}
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	15 years	15 years