SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Real Estate Asset, Useful Life (Detail)	12 Months Ended
Dec. 31, 2019
Building \| Minimum
Real Estate Properties [Line Items]
Standard depreciable life	20 years
Building \| Maximum
Real Estate Properties [Line Items]
Standard depreciable life	40 years
Building and land improvements \| Minimum
Real Estate Properties [Line Items]
Standard depreciable life	5 years
Building and land improvements \| Maximum
Real Estate Properties [Line Items]
Standard depreciable life	20 years

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration