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Derivative Instruments and Risk Management	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Risk Management	Note 14.    Derivative Instruments and Risk Management The Company has limited involvement with derivative instruments and does not trade them. The Company does use derivatives to manage certain interest rate, foreign currency exchange rate and raw material cost exposures, as the need arises. The Company enters into interest rate swap contracts to reduce interest rate risk on its core debt. As at December 31, 2017, interest rate swaps with a notional value of $149,000,000 were in place. Fixed interest rates payable under the interest rate swaps vary from 1.42% to 1.67%. Interest rate swaps in place to hedge interest rate risk on the term loan are for a notional value that matches the repayment profile of the term loan. These interest rate swap contracts have been designated as hedging instruments, and their impact on other comprehensive loss for 2017 was a gain of $1.1 million (2016 – gain $0.4 million). The Company enters into various foreign currency forward exchange contracts to minimize currency exchange rate exposure from expected future cash flows. As at December 31, 2017, foreign currency forward exchange contracts with a notional value of $79.2 million were in place, with maturity dates of up to one year from the date of inception. These foreign currency forward exchange contracts have not been designated as hedging instruments, and their impact on the income statement for 2017 was a loss of $0.9 million (2016 – gain $4.4 million). As at December 31, 2017 and December 31, 2016 the Company did not hold any raw material derivatives. The Company sells a range of specialty chemicals to major oil refineries and chemical companies throughout the world. Credit limits, ongoing credit evaluation and account monitoring procedures are intended to minimize bad debt risk. Collateral is not generally required.

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- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-URI http://asc.fasb.org/topic&trid=2229140

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