XML 74 R80.htm IDEA: XBRL DOCUMENT v3.20.1

Long-term debt - Product loan details (Details) - Fuel Services [Member] kg in Millions	12 Months Ended
	Dec. 31, 2019 kg
Range [member]
Disclosure of detailed information about borrowings [line items]
Available UF6 quantity	1.2
UF6 product loan maturity	March 31, 2023
Standby interest rate	1.00%
Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Interest rate	0.50%
Top of range [member]
Disclosure of detailed information about borrowings [line items]
Interest rate	2.00%

X

- Definition

Total available standby product loan facility to the corporation.

+ References

No definition available.

+ Details

Name:	ccj_AvailableLoanPayableQuantity
Namespace Prefix:	ccj_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Standyby interest rate of product loan facility when the borrowing is not drawn upon.

+ References

No definition available.

+ Details

Name:	ccj_BorrowingsStandbyInterestRate
Namespace Prefix:	ccj_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_BorrowingsMaturity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_SegmentsAxis=ccj_FuelServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=srt_RangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: