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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Allowance for expected credit losses) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Allowance for expected credit loss of other receivable
Balance at the beginning	$ 0
Credit loss of other receivable	18,072
Balance at the end	$ 18,072

X

- Definition

Amount of allowance for credit loss on receivable classified as other.

+ References

No definition available.

+ Details

Name:	dq_OtherReceivableAllowanceForCreditLoss
Namespace Prefix:	dq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	dq_OtherReceivableAllowanceForCreditLossRollForward
Namespace Prefix:	dq_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of expense (reversal of expense) for expected credit loss on other receivable.

+ References

No definition available.

+ Details

Name:	dq_OtherReceivableCreditLossExpenseReversal
Namespace Prefix:	dq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration