Intangible Assets and Liabilities

12 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets and Liabilities

7.    Intangible Assets and Liabilities

The following tables summarizes our intangible assets (acquired above-market leases and acquired in-place leases) and intangible liabilities (acquired below-market leases) and the related amortization as of the dates and for the periods set forth below.

	As of December 31,
(Amounts in thousands)	2019			2018
Intangible assets:
Gross amount	$	479,657		$	515,889
Accumulated amortization		(270,913	)		(245,444	)
	$	208,744		$	270,445
Intangible liabilities:
Gross amount	$	174,670		$	185,191
Accumulated amortization		(100,881	)		(89,200	)
	$	73,789		$	95,991

	For the Year Ended December 31,
(Amounts in thousands)	2019		2018		2017
Amortization of above and below-market leases, net    (component of "rental revenue")	$	10,991	$	16,059	$	19,523
Amortization of acquired in-place leases    (component of "depreciation and amortization")	$	48,932	$	58,814	$	76,016

The following table sets forth annual amortization of acquired above and below-market leases, net and amortization of acquired in-place leases for each of the five succeeding years commencing from January 1, 2020.

(Amounts in thousands) For the Year Ending December 31,	Above and Below-Market Leases, Net		In-Place Leases
2020	$	5,995	$	37,706
2021		3,413		27,795
2022		943		23,298
2023		4,452		18,631
2024		5,498		14,387