Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Cap rate on a foreign currency derivative for example, but not limited to, a cap or a collar.

+ References

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- Definition

Floor rate on a foreign currency derivative for example, but not limited to, a floor or a collar.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959

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- Definition

Fixed price related to the price risk swap derivative.

+ References

No definition available.

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- Definition

Derivative, Number of Instruments Maturing Each Quarter

+ References

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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) CAD in Millions		1 Months Ended
	Sep. 30, 2017 $ / bbl bbl	Sep. 30, 2017 $ / bbl bbl	Jun. 30, 2017 contract bbl	Oct. 31, 2017 $ / d	Jul. 31, 2017 $ / d	Jul. 14, 2017 $ / d	Apr. 30, 2016 CAD collar_arrangement contract $ / CAD	Jun. 30, 2015 CAD collar_arrangement $ / CAD
Forward Contract Maturing in 2017
Derivative [Line Items]
Number of derivative instruments held \| contract							4
Notional amount \| CAD							CAD 33.5
Number of derivative instruments maturing each quarter \| collar_arrangement							1
Exchange rate floor (USD per cad dollar) \| $ / CAD							0.7804
Exchange rate cap (USD per cad dollar) \| $ / CAD							0.7809
Foreign Exchange Option/Maturing in 2016
Derivative [Line Items]
Number of derivative instruments held \| collar_arrangement								4
Notional amount \| CAD								CAD 32.0
Exchange rate floor (USD per cad dollar) \| $ / CAD								0.84
Exchange rate cap (USD per cad dollar) \| $ / CAD								0.86
Foreign Exchange Option/Maturing in 2016 \| Minimum
Derivative [Line Items]
Notional amount \| CAD								CAD 7.9
Foreign Exchange Option/Maturing in 2016 \| Maximum
Derivative [Line Items]
Notional amount \| CAD								CAD 8.1
Crude Oil \| Commodity derivatives
Derivative [Line Items]
Number of derivative instruments held \| contract			2
Notional (in Bbl) \| bbl	61,778		31,778
Crude Oil \| July 3, 2017
Derivative [Line Items]
Notional (in Bbl) \| bbl	18,395		18,000
Crude Oil \| October 2017
Derivative [Line Items]
Notional (in Bbl) \| bbl	13,383		13,000
Crude Oil \| October 2017
Derivative [Line Items]
Notional (in Bbl) \| bbl	30,000	30,000
Crude Oil \| Receive \| July 3, 2017
Derivative [Line Items]
Derivative price (USD per bbl)	47.2	47.2			47.20	47.64
Crude Oil \| Receive \| October 2017
Derivative [Line Items]
Derivative price (USD per bbl) \| $ / bbl	47.7	47.7
Crude Oil \| Receive \| October 2017
Derivative [Line Items]
Derivative price (USD per bbl) \| $ / bbl	47.9	47.9
Subsequent Event \| Crude Oil \| Receive \| October 2017
Derivative [Line Items]
Derivative price (USD per bbl) \| $ / d				47.70
Subsequent Event \| Crude Oil \| Receive \| October 2017
Derivative [Line Items]
Derivative price (USD per bbl) \| $ / d				47.90