STOCKHOLDERS' EQUITY, Authorized Stock and Restricted Stock Plan (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015	Oct. 31, 2015
Authorized Stock [Abstract]
Shares authorized (in shares)	200,000,000		200,000,000
Common stock, shares authorized (in shares)	100,000,000		100,000,000
Excess stock, shares authorized (in shares)	20,000,000		20,000,000		20,000,000
Preferred Stock, shares authorized (in shares)	50,000,000		50,000,000
Common Stock [Member]
Authorized Stock [Abstract]
Common stock, shares authorized (in shares)	30,000,000		30,000,000		30,000,000
Class A Common Stock [Member]
Authorized Stock [Abstract]
Common stock, shares authorized (in shares)	100,000,000		100,000,000		100,000,000
Restricted Stock [Member]
Non-vested shares, weighted-average grant-date fair value [Roll forward]
Unamortized restricted stock compensation	$ 13,700,000		$ 13,700,000
Weighted average period for recognizing unamortized expense			4 years 10 months 24 days
Total amounts charged to compensation expense	$ 1,145,000	$ 1,089,000	$ 3,442,000	$ 2,995,000
Restricted Stock [Member] | Common Stock [Member]
Restricted Stock Plan [Abstract]
Number of shares awarded (in shares)			152,100
Non-vest shares, number of shares [Roll forward]
Non-vested, beginning of period (in shares)			1,281,850
Granted (in shares)			152,100
Vested (in shares)			(175,950)
Forfeited (in shares)			0
Non-vested, end of period (in shares)	1,258,000		1,258,000
Non-vested shares, weighted-average grant-date fair value [Roll forward]
Non-vested, beginning of period (in dollars per share)			$ 16.58
Granted (in dollars per share)			17.95
Vested (in dollars per share)			16.35
Forfeited (in dollars per share)			0
Non-vested, end of period (in dollars per share)	$ 16.77		$ 16.77
Restricted Stock [Member] | Class A Common Stock [Member]
Restricted Stock Plan [Abstract]
Number of shares awarded (in shares)			95,600
Non-vest shares, number of shares [Roll forward]
Non-vested, beginning of period (in shares)			373,850
Granted (in shares)			95,600
Vested (in shares)			(84,200)
Forfeited (in shares)			(550)
Non-vested, end of period (in shares)	384,700		384,700
Non-vested shares, weighted-average grant-date fair value [Roll forward]
Non-vested, beginning of period (in dollars per share)			$ 19.37
Granted (in dollars per share)			18.84
Vested (in dollars per share)			18.64
Forfeited (in dollars per share)			19.40
Non-vested, end of period (in dollars per share)	$ 19.40		$ 19.40
Restricted Stock Plan [Member] | Common Stock [Member]
Restricted Stock Plan [Abstract]
Number of shares authorized (in shares)	350,000		350,000
Restricted Stock Plan [Member] | Class A Common Stock [Member]
Restricted Stock Plan [Abstract]
Number of shares authorized (in shares)	350,000		350,000
Restricted Stock Plan [Member] | Class A Common Shares or Common Shares [Member]
Restricted Stock Plan [Abstract]
Number of shares authorized (in shares)	3,800,000		3,800,000
Restricted Stock Plan [Member] | Restricted Stock [Member] | Class A Common Shares or Common Shares [Member]
Restricted Stock Plan [Abstract]
Number of shares authorized (in shares)	4,500,000		4,500,000
Increase in shares available for grant (in shares)			750,000
Grant date fair value			$ 4,500,000