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SUMMARY OF SIGNIFICANT ACOUNTING POLICIES - Dividends Declared (FY) (Details) - $ / shares	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Ordinary income (In USD Per Share)					$ 0	$ 0.3825
Non-taxable distribution (In USD Per Share)					1.4600	1.7280
Total (in usd per share)	$ 0.2625	$ 0.4080	$ 0.5250	$ 0.9330	$ 1.4600	$ 2.1105

X

- Definition

Aggregate dividends declared which is non-taxable during the period for each share ofcommon stock.

+ References

No definition available.

+ Details

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- Definition

Aggregate dividends declared on ordinary income during the period for each share of common stock.

+ References

No definition available.

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- References

No definition available.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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