Quarterly Financial Data (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	$ 1,057,680
Initial Cost, Land	457,017
Initial Cost, Building and Improvements	1,191,446
Cost Capitalized Subsequent to Acquisition	290,213
Gross Carrying Amount, Land	481,973
Gross Carrying Amount, Building and Improvements	1,456,703
Accumulated Depreciation and Amortization	(270,494)
Alamo Quarry Market
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	93,942
Initial Cost, Land	26,396
Initial Cost, Building and Improvements	109,294
Cost Capitalized Subsequent to Acquisition	10,634
Gross Carrying Amount, Land	26,816
Gross Carrying Amount, Building and Improvements	119,508
Accumulated Depreciation and Amortization	(33,889)
Year Built/ Renovated	1997/1999
Date Acquired	Dec. 09, 2003
Life on which depreciation in latest income statements is computed	35 years
Carmel Country Plaza
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	4,200
Cost Capitalized Subsequent to Acquisition	11,600
Gross Carrying Amount, Land	4,200
Gross Carrying Amount, Building and Improvements	11,600
Accumulated Depreciation and Amortization	(6,483)
Year Built/ Renovated	1991
Date Acquired	Jan. 10, 1989
Life on which depreciation in latest income statements is computed	35 years
Carmel Mountain Plaza
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	22,477
Initial Cost, Building and Improvements	65,217
Cost Capitalized Subsequent to Acquisition	20,933
Gross Carrying Amount, Land	31,035
Gross Carrying Amount, Building and Improvements	77,592
Accumulated Depreciation and Amortization	(23,192)
Year Built/ Renovated	1994
Date Acquired	Mar. 28, 2003
Life on which depreciation in latest income statements is computed	35 years
Del Monte Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	82,300
Initial Cost, Land	27,412
Initial Cost, Building and Improvements	87,570
Cost Capitalized Subsequent to Acquisition	21,414
Gross Carrying Amount, Land	27,117
Gross Carrying Amount, Building and Improvements	109,279
Accumulated Depreciation and Amortization	(35,841)
Year Built/ Renovated	1967/1984/2006
Date Acquired	Apr. 08, 2004
Life on which depreciation in latest income statements is computed	35 years
Lomas Santa Fe Plaza
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	8,600
Initial Cost, Building and Improvements	11,282
Cost Capitalized Subsequent to Acquisition	9,448
Gross Carrying Amount, Land	8,620
Gross Carrying Amount, Building and Improvements	20,710
Accumulated Depreciation and Amortization	(11,931)
Year Built/ Renovated	1972/1997
Date Acquired	Jun. 12, 1995
Life on which depreciation in latest income statements is computed	35 years
Rancho Carmel Plaza
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	3,450
Cost Capitalized Subsequent to Acquisition	3,435
Gross Carrying Amount, Land	3,487
Gross Carrying Amount, Building and Improvements	3,398
Accumulated Depreciation and Amortization	(2,099)
Year Built/ Renovated	1993
Date Acquired	Apr. 30, 1990
Life on which depreciation in latest income statements is computed	35 years
The Shops at Kalakaua
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	19,000
Initial Cost, Land	13,993
Initial Cost, Building and Improvements	10,919
Cost Capitalized Subsequent to Acquisition	100
Gross Carrying Amount, Land	14,006
Gross Carrying Amount, Building and Improvements	11,006
Accumulated Depreciation and Amortization	(2,702)
Year Built/ Renovated	1971/2006
Date Acquired	Mar. 31, 2005
Life on which depreciation in latest income statements is computed	35 years
Solana Beach Towne Centre
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	38,790
Initial Cost, Land	40,980
Initial Cost, Building and Improvements	38,842
Cost Capitalized Subsequent to Acquisition	1,725
Gross Carrying Amount, Land	40,980
Gross Carrying Amount, Building and Improvements	40,567
Accumulated Depreciation and Amortization	(2,704)
Year Built/ Renovated	1973/2000/2004
Date Acquired	Jan. 19, 2011
Life on which depreciation in latest income statements is computed	35 years
South Bay Marketplace
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	23,000
Initial Cost, Land	4,401
Cost Capitalized Subsequent to Acquisition	10,749
Gross Carrying Amount, Land	4,401
Gross Carrying Amount, Building and Improvements	10,749
Accumulated Depreciation and Amortization	(5,727)
Year Built/ Renovated	1997
Date Acquired	Sep. 16, 1995
Life on which depreciation in latest income statements is computed	35 years
Waikele Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	140,700
Initial Cost, Land	55,593
Initial Cost, Building and Improvements	126,858
Cost Capitalized Subsequent to Acquisition	58,015
Gross Carrying Amount, Land	70,643
Gross Carrying Amount, Building and Improvements	169,823
Accumulated Depreciation and Amortization	(40,610)
Year Built/ Renovated	1993/2008
Date Acquired	Sep. 16, 2004
Life on which depreciation in latest income statements is computed	35 years
Geary Marketplace
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	8,239
Initial Cost, Building and Improvements	12,353
Gross Carrying Amount, Land	8,238
Gross Carrying Amount, Building and Improvements	12,354
Year Built/ Renovated	2012
Date Acquired	Dec. 19, 2012
Life on which depreciation in latest income statements is computed	35 years
City Center Bellevue
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	111,000
Initial Cost, Land	25,135
Initial Cost, Building and Improvements	190,998
Cost Capitalized Subsequent to Acquisition	3,829
Gross Carrying Amount, Land	25,135
Gross Carrying Amount, Building and Improvements	194,827
Accumulated Depreciation and Amortization	(2,435)
Year Built/ Renovated	1987
Date Acquired	Aug. 21, 2012
Life on which depreciation in latest income statements is computed	40 years
First & Main
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	84,500
Initial Cost, Land	14,697
Initial Cost, Building and Improvements	109,739
Cost Capitalized Subsequent to Acquisition	2,404
Gross Carrying Amount, Land	14,697
Gross Carrying Amount, Building and Improvements	112,143
Accumulated Depreciation and Amortization	(6,757)
Year Built/ Renovated	2010
Date Acquired	Mar. 11, 2011
Life on which depreciation in latest income statements is computed	40 years
The Land Mark at One Market
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	133,000
Initial Cost, Land	34,575
Initial Cost, Building and Improvements	141,196
Cost Capitalized Subsequent to Acquisition	6,621
Gross Carrying Amount, Land	34,575
Gross Carrying Amount, Building and Improvements	147,817
Accumulated Depreciation and Amortization	(11,154)
Year Built/ Renovated	1917/2000
Date Acquired	Jun. 30, 2010
Life on which depreciation in latest income statements is computed	40 years
Lloyd District Portfolio
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	18,660
Initial Cost, Building and Improvements	61,401
Cost Capitalized Subsequent to Acquisition	5,343
Gross Carrying Amount, Land	11,845
Gross Carrying Amount, Building and Improvements	73,559
Accumulated Depreciation and Amortization	(4,975)
Year Built/ Renovated	1940-2011
Date Acquired	Jul. 01, 2011
Life on which depreciation in latest income statements is computed	40 years
One Beach Street
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	21,900
Initial Cost, Land	15,332
Initial Cost, Building and Improvements	18,017
Cost Capitalized Subsequent to Acquisition	873
Gross Carrying Amount, Land	15,332
Gross Carrying Amount, Building and Improvements	18,890
Accumulated Depreciation and Amortization	(598)
Year Built/ Renovated	1924/1972/1987/1992
Date Acquired	Jan. 24, 2012
Life on which depreciation in latest income statements is computed	40 years
Solana Beach Corporate Centre I-II
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	11,637
Initial Cost, Land	7,111
Initial Cost, Building and Improvements	17,100
Cost Capitalized Subsequent to Acquisition	940
Gross Carrying Amount, Land	7,111
Gross Carrying Amount, Building and Improvements	18,040
Accumulated Depreciation and Amortization	(1,322)
Year Built/ Renovated	1982/2005
Date Acquired	Jan. 19, 2011
Life on which depreciation in latest income statements is computed	40 years
Solana Beach Corporate Centre III-IV
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	37,204
Initial Cost, Land	7,298
Initial Cost, Building and Improvements	27,887
Cost Capitalized Subsequent to Acquisition	708
Gross Carrying Amount, Land	7,298
Gross Carrying Amount, Building and Improvements	28,595
Accumulated Depreciation and Amortization	(2,095)
Year Built/ Renovated	1982/2005
Date Acquired	Jan. 19, 2011
Life on which depreciation in latest income statements is computed	40 years
Solana Beach Corporate Centre Land
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	487
Cost Capitalized Subsequent to Acquisition	60
Gross Carrying Amount, Land	547
Year Built/ Renovated	N/A
Date Acquired	Jan. 19, 2011
ICW Plaza
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	4,095
Cost Capitalized Subsequent to Acquisition	25,303
Gross Carrying Amount, Land	4,788
Gross Carrying Amount, Building and Improvements	24,610
Accumulated Depreciation and Amortization	(9,474)
Year Built/ Renovated	1996-1997
Date Acquired	Jun. 06, 1989
Life on which depreciation in latest income statements is computed	40 years
Pacific North Court
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	21,659
Initial Cost, Land	3,263
Cost Capitalized Subsequent to Acquisition	22,601
Gross Carrying Amount, Land	4,309
Gross Carrying Amount, Building and Improvements	21,555
Accumulated Depreciation and Amortization	(9,208)
Year Built/ Renovated	1997-1998
Date Acquired	Jun. 06, 1989
Life on which depreciation in latest income statements is computed	40 years
Pacific South Court
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	3,285
Cost Capitalized Subsequent to Acquisition	21,509
Gross Carrying Amount, Land	4,226
Gross Carrying Amount, Building and Improvements	20,568
Accumulated Depreciation and Amortization	(9,288)
Year Built/ Renovated	1996-1997
Date Acquired	Jun. 06, 1989
Life on which depreciation in latest income statements is computed	40 years
Pacific VC
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	7,294
Initial Cost, Land	1,413
Cost Capitalized Subsequent to Acquisition	8,574
Gross Carrying Amount, Land	2,148
Gross Carrying Amount, Building and Improvements	7,839
Accumulated Depreciation and Amortization	(3,882)
Year Built/ Renovated	1998/2000
Date Acquired	Jun. 06, 1989
Life on which depreciation in latest income statements is computed	40 years
Pacific Torrey Daycare
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	715
Cost Capitalized Subsequent to Acquisition	1,665
Gross Carrying Amount, Land	911
Gross Carrying Amount, Building and Improvements	1,469
Accumulated Depreciation and Amortization	(698)
Year Built/ Renovated	1996-1997
Date Acquired	Jun. 06, 1989
Life on which depreciation in latest income statements is computed	40 years
Torrey Reserve Land
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	229
Cost Capitalized Subsequent to Acquisition	12,911
Gross Carrying Amount, Building and Improvements	13,140
Year Built/ Renovated	N/A
Date Acquired	Jun. 06, 1989
Imperial Beach Gardens
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	20,000
Initial Cost, Land	1,281
Initial Cost, Building and Improvements	4,820
Cost Capitalized Subsequent to Acquisition	3,826
Gross Carrying Amount, Land	1,281
Gross Carrying Amount, Building and Improvements	8,646
Accumulated Depreciation and Amortization	(6,862)
Year Built/ Renovated	1959/2008-present
Date Acquired	Jul. 31, 1985
Life on which depreciation in latest income statements is computed	30 years
Loma Palisades
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	73,744
Initial Cost, Land	14,000
Initial Cost, Building and Improvements	16,570
Cost Capitalized Subsequent to Acquisition	17,878
Gross Carrying Amount, Land	14,051
Gross Carrying Amount, Building and Improvements	34,397
Accumulated Depreciation and Amortization	(21,799)
Year Built/ Renovated	1958/2001-2008
Date Acquired	Jul. 20, 1990
Life on which depreciation in latest income statements is computed	30 years
Mariner's Point
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	7,700
Initial Cost, Land	2,744
Initial Cost, Building and Improvements	4,540
Cost Capitalized Subsequent to Acquisition	785
Gross Carrying Amount, Land	2,744
Gross Carrying Amount, Building and Improvements	5,325
Accumulated Depreciation and Amortization	(2,144)
Year Built/ Renovated	1986
Date Acquired	May 09, 2001
Life on which depreciation in latest income statements is computed	30 years
Santa Fe Park Rv Resort
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	401
Initial Cost, Building and Improvements	928
Cost Capitalized Subsequent to Acquisition	745
Gross Carrying Amount, Land	401
Gross Carrying Amount, Building and Improvements	1,673
Accumulated Depreciation and Amortization	(1,322)
Year Built/ Renovated	1971/2007-2008
Date Acquired	Jun. 01, 1979
Life on which depreciation in latest income statements is computed	30 years
Waikiki Beach Walk - Retail
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance as of December 31, 2012	130,310
Initial Cost, Land	45,995
Initial Cost, Building and Improvements	74,943
Cost Capitalized Subsequent to Acquisition	64
Gross Carrying Amount, Land	45,995
Gross Carrying Amount, Building and Improvements	75,007
Accumulated Depreciation and Amortization	(4,687)
Year Built/ Renovated	2006
Date Acquired	Jan. 19, 2011
Life on which depreciation in latest income statements is computed	35 years
Waikiki Beach Walk Hotel
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	30,640
Initial Cost, Building and Improvements	60,029
Cost Capitalized Subsequent to Acquisition	1,988
Gross Carrying Amount, Land	30,640
Gross Carrying Amount, Building and Improvements	62,017
Accumulated Depreciation and Amortization	(5,562)
Year Built/ Renovated	2008
Date Acquired	Jan. 19, 2011
Life on which depreciation in latest income statements is computed	35 years
Solana Beach Highway 101 Land
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	7,847
Initial Cost, Building and Improvements	202
Cost Capitalized Subsequent to Acquisition	292
Gross Carrying Amount, Land	8,341
Accumulated Depreciation and Amortization	(114)
Year Built/ Renovated	N/A
Date Acquired	Sep. 20, 2011
Sorrento Valley Holdings Land
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	2,073
Initial Cost, Building and Improvements	741
Cost Capitalized Subsequent to Acquisition	3,241
Gross Carrying Amount, Land	6,055
Accumulated Depreciation and Amortization	$ (940)
Year Built/ Renovated	N/A
Date Acquired	May 09, 1997