Schedule of Estimated Future Amortization and Weighted Average Remaining Useful Life (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets And Liabilities [Line Items]
Intangible assets, net	$ 131,502	$ 172,452
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	31,283
2018	19,638
2019	14,088
2020	11,860
2021	10,608
Thereafter	44,025
Intangible assets, net	131,502
Intangible Liabilities
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	1,485
2018	1,343
2019	1,183
2020	955
2021	839
Thereafter	5,496
Intangible liabilities, net	$ 11,301
In-place lease intangibles
Finite-Lived Intangible Assets And Liabilities [Line Items]
Weighted average useful life, assets	4 years 3 months 18 days
In-place lease intangibles | Finite-Lived Intangible Assets
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	$ 29,222
2018	17,749
2019	12,499
2020	10,481
2021	9,312
Thereafter	31,755
Intangible assets, net	$ 111,018
Above-market lease intangibles
Finite-Lived Intangible Assets And Liabilities [Line Items]
Weighted average useful life, assets	5 years 2 months 12 days
Weighted average useful life, liabilities	37 years 1 month 6 days
Above-market lease intangibles | Finite-Lived Intangible Assets
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	$ 1,741
2018	1,569
2019	1,269
2020	1,059
2021	976
Thereafter	2,194
Intangible assets, net	8,808
Above-market lease intangibles | Intangible Liabilities
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	89
2018	89
2019	89
2020	89
2021	89
Thereafter	2,863
Intangible liabilities, net	$ 3,308
Below-market ground lease intangibles
Finite-Lived Intangible Assets And Liabilities [Line Items]
Weighted average useful life, assets	36 years 7 months 6 days
Weighted average useful life, liabilities	4 years 10 months 24 days
Below-market ground lease intangibles | Finite-Lived Intangible Assets
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	$ 320
2018	320
2019	320
2020	320
2021	320
Thereafter	10,076
Intangible assets, net	11,676
Below-market ground lease intangibles | Intangible Liabilities
Finite-Lived Intangible Assets And Liabilities [Line Items]
2017	1,396
2018	1,254
2019	1,094
2020	866
2021	750
Thereafter	2,633
Intangible liabilities, net	$ 7,993