XML 31 R159.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Common Shares - Dividends (Details) - $ / shares	Jan. 26, 2020	Oct. 09, 2019	Dec. 14, 2018
Share Capital, Reserves And Other Equity Interest [Abstract]
Dividends declared per share	$ 0.0425	$ 0.04	$ 0.04

X

- Definition

The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 137
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_137_a&doctype=Standard
-URIDate 2018-03-16

+ Details

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

X

- Definition

Share Capital, Reserves And Other Equity Interest [Abstract]

+ References

No definition available.

+ Details

Name:	tac_ShareCapitalReservesAndOtherEquityInterestAbstract
Namespace Prefix:	tac_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration