XML 83 R65.htm IDEA: XBRL DOCUMENT
v3.21.2

Summary of Significant Accounting Policies, Earnings Per Unit (FY) (Details) - shares | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Accounting Policies [Abstract] |  |  |
Other dilutive instruments | 0 | 0 | 0

X
- Definition The number of other dilutive instruments outstanding as of reporting date. + References No definition available. + Details
Name: | maps_OtherDilutiveInstruments
Namespace Prefix: | maps_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration