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