Intangible Assets and Below Market Lease Liabilities (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Total Intangible Assets and Below Market Lease Liabilities

The following table sets forth total intangible assets and acquisition-related below market lease liabilities, net of accumulated amortization:

	September 30, 2018			December 31, 2017
Assets:
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)	$	341,384		$	344,191
Less accumulated amortization	(147,588		)	(143,512		)
	$	193,796		$	200,679
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities	$	58,698		$	59,947
Less accumulated amortization	(31,519		)	(28,214		)
	$	27,179		$	31,733

Amortization of Intangible Assets and Below Market Lease Liabilities

The following table sets forth amortization of intangible assets and below market lease liabilities:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)	$	8,969		$	10,130		$	27,671		$	30,882
Amortization of lease incentives (in rental and other revenues)	$	452		$	444		$	1,357		$	1,284
Amortization of acquisition-related intangible assets (in rental and other revenues)	$	415		$	671		$	1,292		$	2,382
Amortization of acquisition-related intangible assets (in rental property and other expenses)	$	140		$	140		$	416		$	416
Amortization of acquisition-related below market lease liabilities (in rental and other revenues)	$	(1,535	)	$	(1,576	)	$	(4,553	)	$	(4,748	)

Scheduled Future Amortization of Intangible Assets and Below Market Lease Liabilities

The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities:

	Amortization of Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization)		Amortization of Lease Incentives (in Rental and Other Revenues)		Amortization of Acquisition-Related Intangible Assets (in Rental and Other Revenues)		Amortization of Acquisition-Related Intangible Assets (in Rental Property and Other Expenses)		Amortization of Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues)
October 1 through December 31, 2018	$	9,395	$	453	$	369	$	136	$	(1,442	)
2019	34,011		1,647		1,273		553		(5,425		)
2020	29,391		1,360		959		518		(5,169		)
2021	24,873		1,132		632		—		(4,362		)
2022	20,584		915		462		—		(3,258		)
Thereafter	58,398		5,327		1,408		—		(7,523		)
	$	176,652	$	10,834	$	5,103	$	1,207	$	(27,179	)
Weighted average remaining amortization periods as of September 30, 2018 (in years)	7.4		10.1		6.5		2.2		6.1