Revenue Interest Financing Payable - Expected Annual Payments (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Revenue Interest Financing Payable
2024 (three months remaining)	$ 2,122
2025	18,017
2026	52,724
2027	32,962
2028	32,962
Thereafter	31,828
Total	$ 170,615

Amount of expected payments on the revenue interest financing payable in remainder of current fiscal year.

No definition available.

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Period Type:	instant

Amount of total expected payments on the revenue interest financing payable.

No definition available.

Name:	lqda_RevenueInterestFinancingAgreementExpectedPaymentsTotal
Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of expected payments on the revenue interest financing payable in fifth fiscal year and thereafter following current fiscal year.

No definition available.

Name:	lqda_RevenueInterestFinancingAgreementExpectedPaymentsYearFiveAndThereafter
Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of expected payments on the revenue interest financing payable in fourth fiscal year following current fiscal year.

No definition available.

Name:	lqda_RevenueInterestFinancingAgreementExpectedPaymentsYearFour
Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of expected payments on the revenue interest financing payable in next fiscal year following current fiscal year.

No definition available.

Name:	lqda_RevenueInterestFinancingAgreementExpectedPaymentsYearOne
Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of expected payments on the revenue interest financing payable in third fiscal year following current fiscal year.

No definition available.

Name:	lqda_RevenueInterestFinancingAgreementExpectedPaymentsYearThree
Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of expected payments on the revenue interest financing payable in second fiscal year following current fiscal year.

No definition available.

Name:	lqda_RevenueInterestFinancingAgreementExpectedPaymentsYearTwo
Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Revenue Interest Financing Payable [Abstract]

No definition available.

Name:	lqda_RevenueInterestFinancingPayableAbstract
Namespace Prefix:	lqda_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration