Acquisition, Disposition, Leasing and Financing Activities - Intangible Assets Acquired and Intangible Liabilities Assumed (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Intangible assets carrying value	$ 21,002
Intangible assets acquired and intangible liabilities assumed, weighted average amortization period	7 years
In Place Lease Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets carrying value	9,435
Intangible assets acquired and intangible liabilities assumed, weighted average amortization period	4 years 4 months 24 days
Above Market Lease Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets carrying value	2,916
Intangible assets acquired and intangible liabilities assumed, weighted average amortization period	6 years
Tenant Relationship Value [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets carrying value	7,388
Intangible assets acquired and intangible liabilities assumed, weighted average amortization period	13 years 3 months 18 days
Lease Commissions, Legal and Marketing Fees [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets carrying value	1,263
Intangible assets acquired and intangible liabilities assumed, weighted average amortization period	4 years 4 months 24 days
Below Market Lease Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets carrying value	$ (1,003)
Intangible assets acquired and intangible liabilities assumed, weighted average amortization period	4 years