STOCKHOLDERS' EQUITY, Share Repurchase Program, Preferred Stock and Common Stock (Details) $ / shares in Units, $ in Thousands		9 Months Ended		12 Months Ended
	Aug. 02, 2016 USD ($) shares	Jul. 31, 2016 USD ($) Quarter Director $ / shares shares	Jul. 31, 2015 USD ($)	Oct. 31, 2015
Equity, Class of Treasury Stock [Line Items]
Proceeds from issuance of preferred stock | $		$ 0	$ 4,640
Proceeds received from sale of Class A Common Stock | $		$ 64,188	$ 59,905
Current Program [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares authorized to be repurchased (in shares)		2,000,000
Common Stock [Member] | Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased (in shares)		4,600
Class A Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Overallotment option shares issued (in shares)	412,500
Proceeds from issuance of stock via exercise of overallotment option | $	$ 9,600
Class A common stock issued (in shares)		2,750,000
Share Price (in dollars per share) | $ / shares		$ 23.29
Proceeds received from sale of Class A Common Stock | $		$ 64,000
Class A Common Stock [Member] | Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased (in shares)		913,331
Series F Senior Redeemable Preferred Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Preferred stock, redemption price per share (in dollars per share) | $ / shares		$ 25.00
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, dividend rate		7.125%		7.125%
Preferred stock, redemption date		Oct. 24, 2017
Series G Senior Redeemable Preferred Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Preferred stock, redemption price per share (in dollars per share) | $ / shares		$ 25.00
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, dividend rate		6.75%		6.75%
Preferred stock, redemption date		Oct. 28, 2019