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v3.26.1

Fair value reserve | 12 Months Ended
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Mar. 31, 2026
Fair Value Reserve |
Fair value reserve |
16. | Fair value reserve
The fair value reserve is used to record the unrealised gains or losses arising from the changes in fair value of quoted equity investments not held for trading purposes.

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- References No definition available. + Details
Name: | ALPS_DisclosureFairValueReserveAbstract
Namespace Prefix: | ALPS_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Disclosure Of Fair Value Reserve [Explanatory] + References No definition available. + Details
Name: | ALPS_DisclosureOfFairValueReserveExplanatory
Namespace Prefix: | ALPS_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration