WM Holding Company, LLC, a Delaware limited liability company, and its subsidiaries (the “Company”), is a technology and software infrastructure provider to retailers and brands in the U.S. state-legal and Canadian cannabis markets. The Company also provides information on the cannabis plant and the industry and advocates for legalization. The Weedmaps listings marketplace provides consumers with information regarding cannabis retailers and brands, as well as the strain, pricing, and other information regarding locally available cannabis products, through the Company’s website and mobile apps, permitting product discovery and reservation of products for pickup by consumers or delivery to consumers by participating retailers. The Company sells its offerings in the United States and Canada, and the Company has a limited number of non-monetized listings in several international countries including Austria, Germany, the Netherlands, Spain, and Switzerland. Through December 31, 2020, the Company offered standard listing subscription clients access to a listing page on weedmaps.com in addition to free access to its SaaS solutions, including WM Orders, WM Dispatch, WM Exchange, WM Retail and WM Store, along with its API integrations with third-party point-of-sale (“POS”) systems. For access to the orders functionality, beginning in September 2019, standard listing clients were also then required to pay a fixed services fee per delivery order submitted which we imposed regardless of whether the proposed order was canceled or completed. As of January 1, 2021, the Company migrated all standard listing subscription clients to our new WM Business subscription package. Under this new subscription package, all retailers continue to receive access to a standard listing page and SaaS solutions. In addition, the Company began including access to WM Dashboard and eliminated the technology services fee on delivery orders as part of the transition to the new WM Business subscription package. The Company operates in the United States, Canada, and other foreign jurisdictions where medical and/or adult use cannabis is legal under state or applicable national law. The Company is headquartered in Irvine, California.

Business and Organization (FY)	12 Months Ended
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Organization	1. Business and organization WM Holding Company, LLC, a Delaware limited liability company, and its subsidiaries (the “Company”), is a technology and software infrastructure provider to retailers and brands in the U.S. state-legal and Canadian cannabis markets. The Company also provides information on the cannabis plant and the industry and advocates for legalization. The Weedmaps listings marketplace provides consumers with information regarding cannabis retailers and brands, as well as the strain, pricing, and other information regarding locally available cannabis products, through the Company’s website and mobile apps, permitting product discovery and reservation of products for pickup by consumers or delivery to consumers by participating retailers. The Company sells its offerings in the United States and Canada, and the Company has a limited number of non-monetized listings in several international countries including Austria, Germany, the Netherlands, Spain, and Switzerland. Through December 31, 2020, the Company offered standard listing subscription clients access to a listing page on weedmaps.com in addition to free access to its SaaS solutions, including WM Orders, WM Dispatch, WM Exchange, WM Retail and WM Store, along with its API integrations with third-party point-of-sale (“POS”) systems. For access to the orders functionality, beginning in September 2019, standard listing clients were also then required to pay a fixed services fee per delivery order submitted which we imposed regardless of whether the proposed order was canceled or completed. As of January 1, 2021, the Company migrated all standard listing subscription clients to our new WM Business subscription package. Under this new subscription package, all retailers continue to receive access to a standard listing page and SaaS solutions. In addition, the Company began including access to WM Dashboard and eliminated the technology services fee on delivery orders as part of the transition to the new WM Business subscription package. The Company operates in the United States, Canada, and other foreign jurisdictions where medical and/or adult use cannabis is legal under state or applicable national law. The Company is headquartered in Irvine, California.