Long-term Debt - Expected Annual Payments (Details) $ in Thousands	Mar. 31, 2026 USD ($)
Long-term Debt
2026 (nine months remaining)	$ 38,438
2027	47,145
2028	54,526
2029	36,865
2030	31,314
Thereafter	50,397
Total	$ 258,685

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

No definition available.

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

No definition available.

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Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
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Amount of expected payments on the revenue interest financing payable in fifth fiscal year and thereafter following current fiscal year.

No definition available.

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Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
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Amount of expected payments on the revenue interest financing payable in fourth fiscal year following current fiscal year.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Amount of expected payments on the revenue interest financing payable in next fiscal year following current fiscal year.

No definition available.

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Namespace Prefix:	lqda_
Data Type:	xbrli:monetaryItemType
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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
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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

No definition available.

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Balance Type:	na
Period Type:	duration