Document And Entity Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Mar. 12, 2020	Jun. 28, 2019
Document Information [Line Items]
Entity Registrant Name	Pure Acquisition Corp.
Entity Central Index Key	0001726293
Trading Symbol	pacq
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Small Business	false
Entity Interactive Data Current	Yes
Entity Public Float			$ 419,796
Entity Shell Company	true
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Title of 12(b) Security	Common Stock
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		10,350,000
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		35,616,199