SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION, Part II (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2017		Oct. 31, 2016		Oct. 31, 2015
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at beginning of the year		$ 1,016,838	[1]	$ 941,690	[1]	$ 830,304
Property improvements during the year		9,326		18,666		12,891
Properties acquired during the year		119,403		58,737		138,720
Properties sold during the year		(52,122)		0		(38,364)
Property assets fully depreciated and written off		(3,043)		(2,255)		(1,861)
Balance at end of year	[1]	1,090,402		1,016,838		941,690
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at beginning of year		186,098		165,660		161,187
Provision during the year charged to income	[2]	25,058		22,693		22,096
Property sold during the year		(13,093)		0		(15,762)
Property assets fully depreciated and written off		(3,043)		(2,255)		(1,861)
Balance at end of year		195,020		$ 186,098		$ 165,660
Property, Plant and Equipment [Line Items]
Aggregate cost for federal income tax purposes for real estate subject to operating leases		818,000
Office Buildings [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		14,559
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		4,246
Office Buildings [Member] | Greenwich, CT 1 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		2,697
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		838
Office Buildings [Member] | Greenwich, CT 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		2,218
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		586
Office Buildings [Member] | Greenwich, CT 3 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,691
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,515
Office Buildings [Member] | Greenwich, CT 4 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		1,539
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		595
Office Buildings [Member] | Greenwich, CT 5 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		865
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		335
Office Buildings [Member] | Bernardsville, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,549
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		377
Retail Properties [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		1,075,843
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		190,774
Retail Properties [Member] | Bethel, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,933
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		702
Retail Properties [Member] | Boonton, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		18,548
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,451
Retail Properties [Member] | Yonkers, NY 3 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		16,964
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,054
Retail Properties [Member] | Bloomfield, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		12,999
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		963
Retail Properties [Member] | Greenwich, CT 1 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,660
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		847
Retail Properties [Member] | Greenwich, CT 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		10,328
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		938
Retail Properties [Member] | Greenwich, CT 6 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		16,254
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,033
Retail Properties [Member] | Greenwich, CT 7 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		31,846
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,066
Retail Properties [Member] | Bronxville, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		1,170
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		214
Retail Properties [Member] | Yonkers, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		1,068
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		176
Retail Properties [Member] | Yonkers, NY 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		577
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		95
Retail Properties [Member] | New Milford, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		11,192
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,173
Retail Properties [Member] | New Milford, CT 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		25,672
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		3,840
Retail Properties [Member] | New Milford, CT 3 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		10,889
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,468
Retail Properties [Member] | Newark, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		27,833
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		5,631
Retail Properties [Member] | Waldwick, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		6,330
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,288
Retail Properties [Member] | Emerson, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		19,804
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		4,522
Retail Properties [Member] | Monroe, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,960
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		877
Retail Properties [Member] | Pelham, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,686
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,030
Retail Properties [Member] | Stratford,CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		62,530
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		17,941
Retail Properties [Member] | Yorktown Heights, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		41,209
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		8,504
Retail Properties [Member] | Rye, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		4,927
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,380
Retail Properties [Member] | Rye, NY 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		2,484
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		671
Retail Properties [Member] | Rye, NY 3 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		1,284
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		406
Retail Properties [Member] | Rye, NY 4 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,497
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		968
Retail Properties [Member] | Somers, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		21,843
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		6,394
Retail Properties [Member] | Westport, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		10,745
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		3,310
Retail Properties [Member] | Orange, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		13,911
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		4,550
Retail Properties [Member] | Stamford, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		97,353
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		32,868
Retail Properties [Member] | Danbury, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,930
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,967
Retail Properties [Member] | Briarcliff, NY 1 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		17,089
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,887
Retail Properties [Member] | Somers, NY 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		10,556
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		4,743
Retail Properties [Member] | Briarcliff, NY 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		2,042
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		797
Retail Properties [Member] | Briarcliff, NY 3 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		15,185
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		6,023
Retail Properties [Member] | Ridgefield, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		7,887
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,179
Retail Properties [Member] | Darien, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		22,378
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		8,858
Retail Properties [Member] | Eastchester, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		10,236
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		3,941
Retail Properties [Member] | Danbury, CT 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		24,297
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		12,205
Retail Properties [Member] | Carmel, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,438
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		4,000
Retail Properties [Member] | Somers, NY 3 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		4,027
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,685
Retail Properties [Member] | Wayne, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		14,684
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		6,889
Retail Properties [Member] | Newington, NH [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,764
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,360
Retail Properties [Member] | Katonah, NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,642
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,398
Retail Properties [Member] | Eastchester, NY 2 [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		9,555
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,161
Retail Properties [Member] | Fairfield Centre, CT [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		18,354
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,241
Retail Properties [Member] | Orangeburg NY [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		22,495
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,194
Retail Properties [Member] | New Providence Property [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		38,362
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		3,810
Retail Properties [Member] | Chester, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		2,743
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		283
Retail Properties [Member] | Various [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		6,082
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		584
Retail Properties [Member] | Midland Park, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		43,753
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,639
Retail Properties [Member] | Harrison, NY [Member} [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		10,833
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		449
Retail Properties [Member] | Fort Lee, NJ [Member} [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,921
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		195
Retail Properties [Member] | Wyckoff, NJ [Member} [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		17,599
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,052
Retail Properties [Member] | Kinnelon, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		26,564
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,926
Retail Properties [Member] | Pompton Lakes, NJ [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		41,092
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		2,472
Retail Properties [Member] | Stamford, Ct - Newfield [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		45,477
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		1,118
Retail Properties [Member] | Stamford, CT - High Ridge [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		13,268
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		261
Retail Properties [Member] | Derby, CT - Aldi [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,318
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		163
Retail Properties [Member] | Passaic, NJ - Van Houten [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		7,655
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		84
Retail Properties [Member] | Stamford, CT - High Ridge Center [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		60,973
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		655
Retail Properties [Member] | Stamford, CT - High Ridge Chase [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		3,834
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		22
Retail Properties [Member] | Stamford, CT - High Ridge CVS [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		4,995
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		40
Retail Properties [Member] | Waldwick, NJ - Waldwick Plaza [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		8,332
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		35
Retail Properties [Member] | Dumont, NJ - Washington Commons [Member]
RECONCILIATION OF REAL ESTATE OWNED SUBJECT TO OPERATING LEASES [Roll Forward]
Balance at end of year		21,987
RECONCILIATION OF ACCUMULATED DEPRECIATION [Roll Forward]
Balance at end of year		$ 98
Tenant Improvement Costs [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life		5 years
Tenant Improvement Costs [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life		20 years

[1] The aggregate cost for Federal Income Tax purposes for real estate subject to operating leases was approximately $551 million at October 31, 2012.

[2] The depreciation provision represents the expense calculated on real property only.