Long-term Debt, Current Portion, Excluding Current Portion of Finance Leases

No definition available.

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Namespace Prefix:	cae_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Long-term Debt, Finance Leases, Current Portion

+ References

No definition available.

+ Details

Name:	cae_LongtermDebtFinanceLeasesCurrentPortion
Namespace Prefix:	cae_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

- Definition

The non-current portion of non-current borrowings. [Refer: Borrowings]

+ References

+ Details

Name:	ifrs-full_LongtermBorrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	cae_BorrowingswithRecourseAxis=cae_RecourseDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	cae_BorrowingswithRecourseAxis=cae_NonrecourseDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DEBT FACILITIES - Long-term Debt (Details) - CAD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt	$ 2,328.3	$ 1,260.9
Less: current portion of long-term debt	201.3	35.2
Less: current portion of long-term debt	62.8	17.0
Long-term debt, net	2,064.2	1,208.7	$ 1,203.5	$ 1,203.5
Recourse Debt
Disclosure of detailed information about borrowings [line items]
Debt	2,275.3	1,174.9
Non-recourse Debt
Disclosure of detailed information about borrowings [line items]
Debt	$ 53.0	$ 86.0