Basic and Diluted Income (Loss) per Common Share - Computation of Basic and Diluted Net Loss per Ordinary Share Using Two-class Method (Details) $ / shares in Units, $ in Thousands	11 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Numerator:
Net loss attributable to Radius Global Infrastructure, Inc. common shareholders	$ (182,091)
Net loss attributable to Radius Global Infrastructure, Inc. common shareholders	$ (182,091)
Denominator:
Weighted average shares outstanding - basic and diluted | shares	58,425,000
Basic and diluted loss per common share | $ / shares	$ (3.12)