Revenue Recognition - Schedule of Revenue From Contracts With Customers Included in Fee and Other Income on Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue From Contract With Customer [Abstract]
Asset and property management fees	$ 5,596	$ 6,173
Leasing commissions	1,622	1,867
Development fees	325	584
Total revenue from contracts with customers	7,543	8,624
Other fee income:
Ancillary and other property income	4,343	4,332
Lease termination fees	521	178
Other	612	883
Total fee and other income	$ 13,019	$ 14,017