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Loans to Customers - Schedule of Provision Expenses on Loans to Customers (Details) - KZT (₸) ₸ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of loans to customers [line items]
Provision expenses on loans to customers	₸ (110,293)	₸ (76,888)	₸ (53,245)

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- Definition

Disclosure Of Loans to customers.

+ References

No definition available.

+ Details

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Namespace Prefix:	kspi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Provision expenses on loans to customers.

+ References

No definition available.

+ Details

Name:	kspi_ProvisionExpensesOnLoansToCustomers
Namespace Prefix:	kspi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration