Lease Intangible Assets and Liabilities - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, net of accumulated amortization	$ 96,332		$ 96,332		$ 123,656
Identified intangible liability, net of accumulated amortization	11,853		11,853		12,281
Amortization of below-market leases, net of above-market leases	100	$ 200	200	$ 500
Additional property expense	51	51	100	100
In-Place Leases, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, net of accumulated amortization	92,843		92,843		$ 108,662
Amortization expense of intangible assets	$ 5,000	$ 35,200	$ 15,300	$ 53,300