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Operating Segments - Summary of Reportable Segments (Detail) (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Disclosure of operating segments [Line Items] |  |  |  |
Loyalty program costs excluded from service cost | [1] | $ 91 | $ 5,053 | $ 2,467
All Other Segments [Member] |  |  |  |
Disclosure of operating segments [Line Items] |  |  |  |
Loyalty program costs excluded from service cost |  | $ 91 | $ 5,053 | $ 2,467
[1] | Certain loyalty program costs excluded from service cost amounting to USD 91 (March 31, 2020: USD 5,053 and March 31, 2019: USD 2,467) for “All other segments”.

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- 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
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- Definition Loyalty program costs excluded from service cost. + References No definition available. + Details
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- Details
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