CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Class A Units	Class P Units	Class A	Class V	Total WM Technology, Inc. Stockholders’ Equity	Total WM Technology, Inc. Stockholders’ Equity Class A Units	Total WM Technology, Inc. Stockholders’ Equity Class P Units	Common Stock Class A	Common Stock Class A Class A Units	Common Stock Class A Class P Units	Common Stock Class V	Common Stock Class V Class A Units	Additional Paid-in Capital	Additional Paid-in Capital Class A Units	Additional Paid-in Capital Class P Units	Retained Earnings	Non-controlling Interests	Non-controlling Interests Class A Units	Non-controlling Interests Class P Units	Members’ Equity
Balance (in shares) at Dec. 31, 2020									0			0
Balance at Dec. 31, 2020						$ 0			$ 0			$ 0		$ 0			$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for acquisition (Note 6)	$ 0
Net (loss) income	7,731
Balance (in shares) at Mar. 31, 2021									0			0
Balance at Mar. 31, 2021						0			$ 0			$ 0		0			0	0
Members' Equity at Dec. 31, 2020	29,271
Members' Equity [Abstract]
Distributions to members	(10,513)																				$ (10,513)
Repurchase of Class B Units	(106)																				(106)
Net loss	7,731																				$ 7,731
Members' Equity at Mar. 31, 2021	26,383
Balance (in shares) at Dec. 31, 2021				65,677,361	65,502,347				65,677,361			65,502,347
Balance at Dec. 31, 2021	131,940					63,556			$ 7			$ 7		2,173			61,369	68,384
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	7,927					7,246								7,246				681
Issuance of common stock - vesting of restricted stock units, net of shares withheld for taxes (in shares)									879,284
Issuance of common stock - vesting of restricted stock units, net of shares withheld for taxes	(13)					(6)								(6)				(7)
Issuance of common stock for acquisitions (Note 6) (in shares)									4,721,706
Issuance of common stock for acquisition (Note 6)	28,725					12,836								12,836				15,889
Issuance of common stock Unit exchange (in shares)										4,295,574	7,525,045		4,295,574
Issuance of common stock Unit exchange		$ 0	$ 0				$ 3,669	$ 6,427		$ 1			$ (1)		$ 3,669	$ 6,427			$ (3,669)	$ (6,427)
Impact of Tax Receivable Agreement due to exchanges of Units	11,625					11,625								11,625
Issuance of common stock - warrants exercised (in shares)									20
Issuance of common stock - warrants exercised	0					0
Net (loss) income	(31,233)					(13,893)											(13,893)	(17,340)
Balance (in shares) at Mar. 31, 2022				83,098,990	61,206,773				83,098,990			61,206,773
Balance at Mar. 31, 2022	148,971					$ 91,460			$ 8			$ 6		$ 43,970			$ 47,476	$ 57,511
Members' Equity [Abstract]
Net loss	$ (13,893)