Earnings Per Share - Computation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income	$ 16,837	$ 9,393	$ 24,568	$ 13,202
Less: net income attributable to WMH LLC prior to the Business Combination	7,347		15,078
Less: net income attributable to noncontrolling interests after the Business Combination	5,227		5,227
Net income attributable to WM Technology, Inc. - basic	4,263		4,263
Effect of dilutive securities:
Less: fair value change of Public and Private Placement Warrants, net of amounts attributable to noncontrolling interests	16,061		16,061
Net loss attributable to WM Technology, Inc. - diluted	$ (11,798)		$ (11,798)
Class A Common Stock
Denominator:
Weighted average common shares outstanding - basic (in shares)	63,738,563		63,738,563
Weighted average common shares outstanding - diluted (in shares)	71,347,746		71,347,746
Net income (loss) per share of Class A Common Stock:
Basic income per share - Class A (in dollars per share)	$ 0.07		$ 0.07
Diluted loss per share - Class A (in dollars per share)	$ (0.17)		$ (0.17)
Public Warrants
Denominator:
Warrants	4,877,681		4,877,681
Private Placement Warrant
Denominator:
Warrants	2,731,502		2,731,502