SHAREHOLDERS’ EQUITY (Details Narrative) - USD ($) $ / shares in Units, $ in Millions								12 Months Ended		171 Months Ended
	Sep. 14, 2021	Nov. 25, 2020	Feb. 06, 2020	Dec. 04, 2019	Jan. 16, 2019	Aug. 02, 2018	Jun. 29, 2017	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Oct. 02, 2021	Oct. 01, 2021	Jan. 14, 2021
Class of Stock [Line Items]
Common stock shares authorized								300,000,000	200,000,000	300,000,000
Common stock, shares outstanding								98,300,000		98,300,000
Common stock, shares issued								98,300,000		98,300,000
Excess stock, shares authorized								200,000,000	200,000,000	200,000,000
Excess stock, par value								$ 0.01	$ 0.01	$ 0.01
Excess stock , shares issued								0	0	0
Percentage of discount price from market price through drip program								95.00%
Common stock, par value								$ 0.01	$ 0.01	$ 0.01
Maximum dollar value that may be purchased under the share repurchase program								$ 45.7		$ 45.7
Amount ATM increased by				$ 101.0		$ 96.5
Amount that ATM program carried over from preferred stock				$ 24.0		$ 28.5
Sale of Stock, number of shares issued in ATM program								3,100,000
Proceeds from ATM program								$ 76.0
Common Stock Repurchase Program [Member]
Class of Stock [Line Items]
Increase in the value of common stock available under program					$ 40.0
Maximum dollar value that may be purchased under the share repurchase program					$ 50.0
Preferred Stock ATM Program [Member]
Class of Stock [Line Items]
Cumulative redeemable preferred, stock dividend rate								6.125%		6.125%
Amount ATM Program increased to		$ 150.0
Sale of Stock, number of shares issued in ATM program										13,600,000
Net proceeds from preferred stock ATM program										$ 332.4
Equity Distribution Agreement [Member]
Class of Stock [Line Items]
Common stock, par value			$ 0.01
Remaining amount that may be sold, value			$ 150.0
Common Stock Repurchase Program [Member]
Class of Stock [Line Items]
Number of common stock repurchased									400,000
Value of common stock repurchased									$ 4.3
Average price per share									$ 10.69
Board of Directors [Member]
Class of Stock [Line Items]
Dividend declared per share												$ 0.18
Annualized dividend rate													$ 0.72
Total available shares to purchase under the agreement	50,000,000
Board of Directors [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Dividend declared per share											$ 0.3828125
Board of Directors [Member] | Third Dividend [Member]
Class of Stock [Line Items]
Percentage increase in common stock dividend over five year period													20.00%
Board of Directors [Member] | Maximum [Member]
Class of Stock [Line Items]
Dividend declared per share													$ 0.18
Board of Directors [Member] | Minimum [Member]
Class of Stock [Line Items]
Dividend declared per share													$ 0.17
Common Stock [Member]
Class of Stock [Line Items]
Percentage increase in common stock dividend													5.90%
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized								26,600,000	21,900,000	26,600,000
Cumulative redeemable preferred, stock dividend rate		6.125%		6.125%		6.125%		6.125%	6.125%	6.125%
Preferred stock, shares issued								22,000,000.0		22,000,000.0
Preferred stock, shares outstanding								22,000,000.0		22,000,000.0
Preferred stock liquidation preference								$ 549.6		$ 549.6
Amount ATM Program increased to				$ 125.0		$ 125.0
Preferred stock, dividend per share declared								$ 1.53125
Amount received upon closing of merger								$ 25.00		$ 25.00
Description of redemption of preferred stock outstanding								within 90 days after the Delisting Event, for a cash redemption price per share of 6.125% Series C Preferred Stock equal to $25.00 plus any accumulated and unpaid dividends thereon (whether or not declared), to, but not including, the redemption date
Description of redemption of preferred stock outstanding upon the occurrence of change of control								within 120 days after the first date on which such Change of Control occurred, for a cash redemption price per share of 6.125% Series C Preferred Stock equal to $25.00 plus any accumulated and unpaid dividends thereon (whether or not declared) to, but not including, the redemption date
Series C Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Cumulative redeemable preferred, stock dividend rate								6.125%		6.125%
Available for sale through ATM program							$ 100.0
Preferred stock redemption price								$ 25.00		$ 25.00
Series C Preferred Stock One [Member]
Class of Stock [Line Items]
Cumulative redeemable preferred, stock dividend rate		6.125%