STOCKHOLDERS' EQUITY (Details) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 31, 2016	Oct. 31, 2016 USD ($) Quarter Director $ / shares shares	Oct. 31, 2015 USD ($) $ / shares shares	Oct. 31, 2014 USD ($) $ / shares shares
Class of Stock [Line Items]
Shares authorized (in shares)		200,000,000	200,000,000
Excess stock, shares authorized (in shares)		20,000,000	20,000,000
Repayment of unsecured revolving credit facility | $		$ 66,750	$ 97,550	$ 58,750
Proceeds from issuance of common stock | $		$ 73,842	$ 59,983	248
Excess stock issuance threshold ownership percentage		7.50%	7.50%
Proceeds from Issuance of Preferred Stock and Preference Stock | $		$ 0	$ 4,640	$ 67,795
Minimum [Member]
Class of Stock [Line Items]
Class A Common Stock dividend per share to Common Stock dividend per share		110.00%	110.00%
Common Stock [Member]
Class of Stock [Line Items]
Shares issued under the dividend reinvestment plan (in shares)		4,988	5,326
Common Stock [Member] | Common Shares [Member]
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		30,000,000	30,000,000
Voting rights per share		100.00%	100.00%
Shares issued under the dividend reinvestment plan (in shares)		4,988	5,326	6,347
Common Stock available for issuance (in shares)		347,639
Common Stock [Member] | Class A Common Shares [Member]
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		100,000,000	100,000,000
Shares issued (in shares)		3,162,500	2,875,000
Share Price (in dollars per share) | $ / shares		$ 23.29	$ 20.82
Proceeds from issuance of common stock | $		$ 73,700	$ 59,700
Voting rights per share		5.00%	5.00%
Shares issued under the dividend reinvestment plan (in shares)		5,854	6,104	6,811
Common Stock available for issuance (in shares)		404,315
Common Stock [Member] | Class A Common Shares or Common Shares [Member]
Class of Stock [Line Items]
Common stock, shares authorized (in shares)			100,000,000
Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)		50,000,000	50,000,000
Preferred Stock [Member] | Series D Senior Cumulative Preferred Stock [Member]
Class of Stock [Line Items]
Redemption price (in dollars per share) | $ / shares				$ 25
Preferred stock, dividend rate		7.50%	7.50%	7.50%
Payments of Stock Issuance Costs | $				$ 1,870
Preferred Stock [Member] | Series F Cumulative Preferred Stock [Member]
Class of Stock [Line Items]
Redemption price (in dollars per share) | $ / shares		$ 25
Preferred stock, dividend rate	7.125%	7.125%	7.125%	7.125%
Number of quarters with cumulative arrearage of quarterly dividends to trigger the election of additional board members by holders of preferred stock | Quarter		6
Number of directors redeemable preferred stockholders are entitled to elect | Director		2
Preferred Stock [Member] | Series A Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred shares purchaseable per right (in shares)		0.01
Exercise price per right (in dollars per right) | $ / shares		$ 65
Distribution holding period		10 days
Value of common shares as a multiple of the exercise price of the right		200.00%
Preferred Stock [Member] | Series A Participating Preferred Stock [Member] | Minimum [Member]
Class of Stock [Line Items]
Percentage of combined voting power of Common Shares to trigger rights distribution		10.00%
Percentage of ownership offer to trigger rights distribution		30.00%
Percentage of assets sold or transferred to trigger stock purchase rights		50.00%
Preferred Stock [Member] | Series G Senior Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Redemption price (in dollars per share) | $ / shares		$ 25
Preferred stock, dividend rate	6.75%	6.75%	6.75%	6.75%
Number of quarters with cumulative arrearage of quarterly dividends to trigger the election of additional board members by holders of preferred stock | Quarter		6
Number of directors redeemable preferred stockholders are entitled to elect | Director		2