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v3.25.2

Other Receivables and Other Current Assets, Net - Schedule of Movement of Allowance for Credit Loss (Details) - USD ($) | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Schedule of Movement of Allowance for Credit Loss [Abstract] |  |  |
Beginning balance | $ 52,949 | $ 3,747 | $ 2,376
(Recovery) Addition | (24,093) | 49,351 | 1,279
Translation adjustment | (933) | (149) | 92
Ending balance | $ 27,923 | $ 52,949 | $ 3,747

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- Definition The amount of allowance for doubtful other receivable period increase decrease. + References No definition available. + Details
Name: | gcl_AllowanceForDoubtfulOtherReceivablePeriodIncreaseDecrease
Namespace Prefix: | gcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of increase in allowance for credit loss on other receivable, from recovery. + References No definition available. + Details
Name: | gcl_AllowanceForDoubtfulOtherReceivableRecoveries
Namespace Prefix: | gcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Definition Amount of allowance for credit loss on receivable, classified as other and current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant