SUBSEQUENT EVENTS (Details) - USD ($)	1 Months Ended	6 Months Ended
	Jul. 29, 2020	Jun. 30, 2020	Jun. 30, 2019
Subsequent Event [Line Items]
Total amount of unsecured debt	$ 175,000,000
Issuance of shares of common stock	14,149
Proceeds from Issuance of Common Stock	$ 1,729,000	$ 44,381,000	$ 113,436,000
$100 million senior unsecured private placement notes (2Q 2020) [Member]
Subsequent Event [Line Items]
Unsecured debt, carrying amount	$ 100,000,000
Debt Instrument, Term	10 years
Fixed interest rate	2.61%
$75 million senior unsecured private placement notes (2020) [Member]
Subsequent Event [Line Items]
Unsecured debt, carrying amount	$ 75,000,000
Debt Instrument, Term	12 years
Fixed interest rate	2.71%