Lease Intangibles Net - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles including above market lease	$ 1.0	$ 3.1	$ 1.0	$ 3.1
In place leases
Finite-Lived Intangible Assets [Line Items]
Amortization of above market leases	0.07	0.20	0.07	0.20
Above-market leases
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 1.0	$ 2.9	$ 1.0	$ 2.9