Acquired Intangible Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Acquired Intangible Assets And Liabilities [Abstract]

Summary of Acquired Intangible Assets

The following summarizes our acquired intangible assets (real estate intangibles, comprised of acquired in-place lease value and tenant relationship value along with acquired above-market lease value) and intangible liabilities (acquired below-market lease value) as of December 31, 2017 and 2016.

	Balance as of
(Amounts in thousands)	December 31, 2017			December 31, 2016
Real Estate Intangibles:
Acquired in-place lease value:
Gross amount	$	1,473,515		$	896,693
Accumulated amortization	(613,948		)	(517,443		)
Net	$	859,567		$	379,250
Tenant relationship value:
Gross amount	$	1,978,277		$	971,519
Accumulated amortization	(169,919		)	(82,069		)
Net	$	1,808,358		$	889,450
Trade name:
Gross amount	$	—		$	7,300
Accumulated amortization	—			(7,300		)
Net	$	—		$	—
Acquired above-market leases:
Gross amount	$	294,514		$	110,142
Accumulated amortization	(110,139		)	(87,961		)
Net	$	184,375		$	22,181
Acquired below-market leases:
Gross amount	$	469,119		$	283,899
Accumulated amortization	(219,654		)	(202,000		)
Net	$	249,465		$	81,899

Schedule of Below Market Lease Future Amortization

Estimated annual amortization of acquired below-market lease value, net of acquired above-market lease value, for each of the five succeeding years and thereafter, commencing January 1, 2018 is as follows:

(Amounts in thousands)
2018	$	(26,622	)
2019	(15,372		)
2020	(3,151		)
2021	2,055
2022	9,054
Thereafter	99,126
Total	$	65,090

Schedule of Finite-Lived Intangible Assets Future Amortization Expense

Estimated annual amortization of acquired in-place lease value for each of the five succeeding years and thereafter, commencing January 1, 2018 is as follows:

(Amounts in thousands)
2018	$	209,091
2019	147,137
2020	111,205
2021	86,583
2022	64,666
Thereafter	240,885
Total	$	859,567

Estimated annual amortization of tenant relationship value for each of the five succeeding years and thereafter, commencing January 1, 2018 is as follows:

(Amounts in thousands)
2018	$	123,786
2019	123,786
2020	123,786
2021	123,786
2022	123,792
Thereafter	1,189,422
Total	$	1,808,358