Condensed Consolidated Statement of Changes in Stockholders' Equity - 1 months ended Sep. 30, 2020 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Aug. 21, 2020
Balance at Aug. 21, 2020
HighPeak business combination with HPK LP (in shares)	81,383
HighPeak business combination with HPK LP	$ 8	521,674		430,902
HighPeak business combination with HPK LP			(90,780)
Conversion of Pure Common Stock (in shares)	1,232
Conversion of Pure Common Stock		12,324		12,324
Forward Purchases (in shares)	8,977
Forward Purchases	$ 1	89,768		89,769
Offering costs (including costs incurred at Pure prior to HighPeak business combination)		(22,035)		(22,035)
Deferred income tax liability at HighPeak business combination		(40,500)		$ (40,500)
Exercised (in shares)
Shares issued upon options being exercised
Compensation costs included in net loss		14,508		14,508
Net loss			(11,516)	(11,516)
Balance (in shares) at Sep. 30, 2020	91,592
Balance at Sep. 30, 2020	$ 9	$ 575,739	$ (102,296)	$ 473,452