Intangible Assets and Below-Market Leases - Summary of Identifiable Intangible Assets and Below Market Leases (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Acquired below-market leases:
Gross amount	$ 6,777	$ 6,780
Accumulated Amortization	(3,118)	(3,056)
Acquired below-market leases, net	3,659	3,724
Acquired Finite-Lived Intangible Assets [Line Items]
Net balance	7,085	7,273
Acquired leasing commissions
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	7,284	7,001
Accumulated amortization	(4,058)	(3,858)
Net balance	3,226	3,143
Acquired leases in place
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	5,975	5,987
Accumulated amortization	(5,837)	(5,838)
Net balance	138	149
Acquired tenant relationship costs
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	9,736	9,736
Accumulated amortization	(8,036)	(7,792)
Net balance	1,700	1,944
Acquired other intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	3,080	3,085
Accumulated amortization	(1,059)	(1,048)
Net balance	$ 2,021	$ 2,037