For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Name:	us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

SUBSEQUENT EVENTS (FY) (Details) $ in Millions			3 Months Ended	6 Months Ended
SUBSEQUENT EVENTS (FY) (Details) $ in Millions	Feb. 15, 2021 USD ($)	Sep. 14, 2020	Mar. 31, 2021	Dec. 31, 2020
Business Combination Agreement [Abstract]
Stock conversion basis at time of business combination		1	1	1
Subsequent Event [Member] \| Business Combination Agreement [Member]
Business Combination Agreement [Abstract]
Stock conversion basis at time of business combination	1
Subsequent Event [Member] \| Maximum [Member] \| Business Combination Agreement [Member]
Business Combination Agreement [Abstract]
Cash payment in lieu of vested options	$ 10