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Share Capital (Flow-though share financing) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Apr. 01, 2019	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Flow-though Share Financing [Line Items]
Proceeds from issuance of flow-through shares	$ 8.0		$ 7.5	$ 0.0
CDE and CEE [Member]
Flow-though Share Financing [Line Items]
Number of shares issued		1,132,169
Proceeds from issuance of flow-through shares		$ 7.5

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- Definition

[Line Items] for Flow-though Share Financing [Table]

+ References

No definition available.

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- Definition

The number of shares issued by the entity.

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- Definition

The cash inflow from issuing shares.

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