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Revenue From Contracts With Customers (Details) - Sandoz - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Aug. 31, 2018 | Mar. 31, 2023
Promotion Agreement, Payment | $ 20.0 |
Percentage of Revenue from Promotion Agreement |  | 99.00%
Contract with Customer, Refund Liability |  | $ 0.9

X
- Definition Percentage of revenue from Promotion Agreement. + References No definition available. + Details
Name: | lqda_PercentageOfRevenueFromPromotionAgreement
Namespace Prefix: | lqda_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount paid by the Company at the inception of the Promotion Agreement, in consideration for the right to conduct promotional activities for the product. + References No definition available. + Details
Name: | lqda_PromotionAgreementPayment
Namespace Prefix: | lqda_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 55 -Paragraph 27 -URI https://asc.fasb.org/extlink&oid=126920602&loc=SL49130611-203046-203046 + Details
Name: | us-gaap_ContractWithCustomerRefundLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | srt_CounterpartyNameAxis=lqda_SandozMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |