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Derivative Instruments and Hedging Activities - Notional Contracts by Derivative Type (Details)	6 Months Ended
	Jun. 30, 2025 CAD ($) ozt bbl
NYMEX futures (WTI) - short
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	970,000
NYMEX futures (WTI) - short | 2025
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	970,000
NYMEX futures (WTI) - short | 2026
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	0
Forward crude oil contracts | Long
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	640,000
Forward crude oil contracts | Short
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	368,000
Forward crude oil contracts | 2025 | Long
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	460,000
Forward crude oil contracts | 2025 | Short
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	368,000
Forward crude oil contracts | 2026 | Long
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	180,000
Forward crude oil contracts | 2026 | Short
Economic hedges by derivative type [Line Items]
Derivative notional amount (in barrels)	0
Foreign currency forward contracts
Economic hedges by derivative type [Line Items]
Derivative notional amount | $	$ 522,000,000
Foreign currency forward contracts | 2025
Economic hedges by derivative type [Line Items]
Derivative notional amount | $	240,589,800
Foreign currency forward contracts | 2026
Economic hedges by derivative type [Line Items]
Derivative notional amount | $	$ 281,410,200
Forward commodity contracts (platinum)
Economic hedges by derivative type [Line Items]
Derivative notional amount (in troy ounces) | ozt	34,628
Forward commodity contracts (platinum) | 2025
Economic hedges by derivative type [Line Items]
Derivative notional amount (in troy ounces) | ozt	7,487
Forward commodity contracts (platinum) | 2026
Economic hedges by derivative type [Line Items]
Derivative notional amount (in troy ounces) | ozt	27,141

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Nominal volume used to calculate payments on a derivative instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 181
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480401/815-10-55-181

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
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-Name Accounting Standards Codification
-Section 55
-Paragraph 181
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480401/815-10-55-181

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-Topic 815
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-Section 50
-Paragraph 1B
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-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B

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-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A

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