SHAREHOLDER'S EQUITY - Company Dividend Activity (Details) - USD ($)				1 Months Ended	3 Months Ended										12 Months Ended
	Aug. 09, 2019	Nov. 02, 2017	Nov. 01, 2017	Aug. 30, 2017	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2016	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stockholders' Equity Note [Abstract]
Common stock dividends per share (in dollars per share)	$ 0.08	$ 0.36	$ 0.30	$ 0.20	$ 0.020	$ 0.020	$ 0.090	$ 0.090	$ 0.090	$ 0.090	$ 0.090	$ 0.090		$ 0.30
Aggregate Payment Amount	$ 2,700,000				$ 2,679,826	$ 2,676,900	$ 12,486,441	$ 12,430,279	$ 12,366,985	$ 12,486,825	$ 12,475,445	$ 12,440,990	$ 12,400,000	$ 2,900,000	$ 30,273,000	$ 49,770,000	$ 29,296,000