Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_PreferredStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

REDEEMABLE PREFERRED STOCK - Series D Preferred Stock Narrative (Details) - Series D Preferred Stock - $ / shares	Mar. 31, 2021	Dec. 31, 2020	Jun. 29, 2020	Jun. 28, 2020	Feb. 29, 2020
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001			$ 0.001
Continuous Public Offering
Class of Stock [Line Items]
Purchase price (in usd per share)			$ 24.50	$ 25.00	$ 25.00