Intangible Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets and Liabilities

The following tables summarize 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
(Amounts in thousands)	March 31, 2019			December 31, 2018
Intangible assets:
Gross amount	$	506,627		$	515,889
Accumulated amortization		(252,273	)		(245,444	)
	$	254,354		$	270,445
Intangible liabilities:
Gross amount	$	181,008		$	185,191
Accumulated amortization		(91,053	)		(89,200	)
	$	89,955		$	95,991

	For the Three Months Ended March 31,
(Amounts in thousands)	2019		2018
Amortization of above and below-market leases, net    (component of "rental revenue")	$	3,276	$	4,420
Amortization of acquired in-place leases    (component of "depreciation and amortization")	$	13,333	$	15,293

Schedule of Estimated Annual Amortization of Acquired Below-Market Leases, Net of Acquired Above-Market Leases and In Place Leases

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	$	6,637	$	38,556
2021		3,357		28,108
2022		892		23,598
2023		4,407		18,917
2024		5,416		14,490