Earnings Per Share - Computation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net loss	$ (2,512)	$ 1,983	$ (3,969)	$ (10,464)	$ 19,848	$ (31,233)	$ (4,498)	$ (21,849)
Less: net loss attributable to noncontrolling interests	(974)			(5,300)			(1,711)	(14,484)
Class A Common Stock
Numerator:
Net loss attributable to WM Technology, Inc. Class A Common Stock - basic	(1,538)			(5,164)			(2,787)	(7,365)
Net loss attributable to WM Technology, Inc. Class A Common Stock - diluted	$ (1,538)			$ (5,164)			$ (2,787)	$ (7,365)
Denominator:
Weighted average of shares of Class A common stock outstanding - basic (in shares)	93,651,871			89,552,914			92,947,191	82,872,137
Weighted average of shares of Class A common stock outstanding - diluted (in shares)	93,651,871			89,552,914			92,947,191	82,872,137
Net income (loss) per share of Class A common stock - basic (in dollars per share)	$ (0.02)			$ (0.06)			$ (0.03)	$ (0.09)
Net income (loss) per share of Class A common stock - diluted (in dollars per share)	$ (0.02)			$ (0.06)			$ (0.03)	$ (0.09)