XML 161 R118.htm IDEA: XBRL DOCUMENT
v3.8.0.1

OTHER GAINS - NET (Details) - CAD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 17, 2017 | Dec. 31, 2017 | Sep. 30, 2017 | Sep. 30, 2017 | Mar. 31, 2018 | Mar. 31, 2017
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Restructuring, integration and acquisition costs |  |  |  |  | $ 0.0 | $ 35.5
Remeasurement of investment, net of reorganization and others costs |  |  |  |  | $ 12.2 | $ 0.0
Zhuhai Xiang Yi Aviation Technology Company Limited |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Equity method investment sold, percentage |  |  | 49.00% |  |  |
Proceeds from sale of investments |  |  | $ 114.0 |  |  |
Proportion of ownership interest in joint venture |  |  |  |  | 0.00% | 49.00%
Asian Aviation Centre of Excellence Sdn. Bhd. |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Proportion of ownership interest in joint venture | 50.00% |  |  | 50.00% |  |
Asian Aviation Centre of Excellence Sdn. Bhd. |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Impairment loss |  | $ 9.4 |  |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% |  |  |  |
Gain (loss) recognised as result of remeasuring to fair value equity interest in previously held interest |  | $ 34.7 |  |  |  |
Remeasurement of equity method investments, costs |  | 8.5 |  |  |  |
Restructuring, integration and acquisition costs |  | 1.5 |  |  |  |
Remeasurement of investment, net of reorganization and others costs |  | 12.2 |  |  |  |
Reorganization and other costs |  | 8.2 |  |  |  |
Gain (losses) on remeasurement of equity method investments, net of costs |  | 4.0 |  |  |  |
Investments accounted for using equity method | Zhuhai Xiang Yi Aviation Technology Company Limited |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Impairment loss |  |  | 7.0 |  |  |
Gains (losses) on disposals of investments |  |  | 14.3 |  |  |
Goodwill | Zhuhai Xiang Yi Aviation Technology Company Limited |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Disposals, goodwill |  |  | $ 6.3 |  |  |
Goodwill | Asian Aviation Centre of Excellence Sdn. Bhd. |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Disposals, goodwill |  | $ 4.6 |  |  |  |

X
- Definition Equity Method Investment Sold, Percent + References No definition available. + Details
Name: | cae_EquityMethodInvestmentSoldPercent
Namespace Prefix: | cae_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gain (Loss) On Remeasurement Of Equity Method Investments, Net Of Reorganization Costs + References No definition available. + Details
Name: | cae_GainLossOnRemeasurementOfEquityMethodInvestmentsNetOfReorganizationCosts
Namespace Prefix: | cae_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gain (Losses) On Remeasurement Of Equity Method Investments + References No definition available. + Details
Name: | cae_GainLossesOnRemeasurementOfEquityMethodInvestments
Namespace Prefix: | cae_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Remeasurement Of Equity Method Investments, Costs + References No definition available. + Details
Name: | cae_RemeasurementOfEquityMethodInvestmentsCosts
Namespace Prefix: | cae_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reorganization And Other Costs + References No definition available. + Details
Name: | cae_ReorganizationAndOtherCosts
Namespace Prefix: | cae_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Restructuring, Integration And Acquisition Costs + References No definition available. + Details
Name: | cae_RestructuringIntegrationAndAcquisitionCosts
Namespace Prefix: | cae_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_ii&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisposalsIntangibleAssetsAndGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The gain (loss) recognised as result of remeasuring to fair value the equity interest in the acquiree held by the acquirer before the business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph p -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_p_ii&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_GainLossRecognisedAsResultOfRemeasuringToFairValueEquityInterestInAcquireeHeldByAcquirerBeforeBusinessCombination
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The gains (losses) on disposals of investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_d&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_GainsLossesOnDisposalsOfInvestments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss. [Refer: Impairment loss; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 126 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_126_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 129 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_129_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from sales of investments accounted for using the equity method. [Refer: Investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_16&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_17_b_iii&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_16_b_iii&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_21_a_iv&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInJointVenture
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_17_b_iii&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_16_b_iii&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_19B_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_JointVenturesAxis=cae_ZhuhaiXiangYiAviationTechnologyCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=cae_AsianAviationCentreofExcellenceSdn.Bhd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=cae_AsianAviationCentreofExcellenceSdn.Bhd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_InvestmentsAccountedForUsingEquityMethodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=ifrs-full_GoodwillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |