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Other Non-Current Assets - Narrative (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Other Assets [Abstract]
Defined benefit plan, benefit obligation, benefits made to escrow	$ 0	$ 1,000,000

X

- Definition

Defined Benefit Plan, Benefit Obligation, Benefits Paid, Escrow

+ References

No definition available.

+ Details

Name:	kwr_DefinedBenefitPlanBenefitObligationBenefitsPaidEscrow
Namespace Prefix:	kwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_OtherAssetsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration