Prepaid Expenses and Other Current Assets - Additional Information (Detail) - Savara ApS [Member] - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Prepaid Expenses And Other Current Assets [Line Items]
Research and development tax credits	22.00%
R&D Tax Credit Receivable [Member]
Prepaid Expenses And Other Current Assets [Line Items]
Research and development tax credits receivable		$ 0.8
Other Non-current Assets [Member]
Prepaid Expenses And Other Current Assets [Line Items]
Research and development tax credits receivable	$ 0.8

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

Name:	us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration