PRIVATE PLACEMENT (Details) - USD ($)			5 Months Ended	12 Months Ended
PRIVATE PLACEMENT (Details) - USD ($)	Dec. 14, 2020	Dec. 10, 2020	Dec. 31, 2020	Dec. 31, 2021
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of warrants			$ 12,818,750	$ 0
Over-allotment option
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of warrants	$ 1,443,750
Over-allotment option \| Private Placement Warrants
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued	1,269,231
Number of shares per warrant	174,519
Private Placement
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued	1,443,750	11,375,000
Exercise price of warrants	$ 1.00
Private Placement \| Private Placement Warrants
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued		1,375,000
Price of warrants		$ 1.00
Proceeds from issuance of warrants		$ 11,375,000
Number of shares per warrant			1
Exercise price of warrants		$ 1.00	$ 11.50
Private Placement \| Sponsor
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued		10,000,000
Exercise price of warrants		$ 1.00

Mudrick Capital Acquisition Corp. II 10-K