Intangible Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Intangible Assets And Liabilities [Abstract]

Schedule Of Intangible Assets and Liabilities

Intangible assets and liabilities are summarized as follows (in thousands):

		December 31, 2017									December 31, 2016
	Amortization Period (Years)	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
Finite-Lived Intangible Assets
In-place lease	4 – 53	$	629,961		$	(213,641	)	$	416,320		$	620,149		$	(181,598	)	$	438,551
Above-market rent	5 – 40	98,162			(31,533		)	66,629			91,895			(24,599		)	67,296
Below-market ground leases and other	55 – 94	12,842			(726		)	12,116			12,023			(508		)	11,515
		740,965			(245,900		)	495,065			724,067			(206,705		)	517,362
Indefinite-Lived Intangible Assets
Goodwill		304			—			304			304			—			304
Total intangible assets		$	741,269		$	(245,900	)	$	495,369		$	724,371		$	(206,705	)	$	517,666
Finite-Lived Intangible Liabilities
Below-market rent	7 – 53	$	(82,259	)	$	22,121		$	(60,138	)	$	(120,725	)	$	39,025		$	(81,700	)
Above-market ground lease	49 – 88	(1,145		)	61			(1,084		)	(1,145		)	46			(1,099		)
Total intangible liabilities		$	(83,404	)	$	22,182		$	(61,222	)	$	(121,870	)	$	39,071		$	(82,799	)

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Based on the intangible assets and liabilities recorded at December 31, 2017, scheduled annual net amortization of intangibles for the next five calendar years and thereafter is as follows (in thousands):

Years Ending December 31,	Net Decrease (Increase) in Rental Income			Increase to Amortization/Property Expenses		Net
2018	$	1,374		$	37,007	$	38,381
2019	1,374			36,740		38,114
2020	1,367			36,563		37,930
2021	1,369			36,435		37,804
2022	1,375			36,141		37,516
Thereafter	(368		)	244,466		244,098
	$	6,491		$	427,352	$	433,843