XML 159 R110.htm IDEA: XBRL DOCUMENT v3.20.1

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [abstract]
Applicable tax rate	27.00%	27.00%
Resource related expense accumulated with no deferred tax benefit recognized	$ 8,188	$ 6,582

X

- Definition

Income Taxes [abstract].

+ References

No definition available.

+ Details

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Namespace Prefix:	fsm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Resource related expense accumulated with no deferred tax benefit recognized.

+ References

No definition available.

+ Details

Name:	fsm_ResourceRelatedExpenseAccumulatedWithNoDeferredTaxBenefitRecognized
Namespace Prefix:	fsm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The applicable income tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2018-01-01
-Paragraph 81
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_81_c_ii&doctype=Standard
-URIDate 2018-03-16

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration