Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Properties are depreciated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives are as follows:



Category		Term
Building (fee ownership)		40 years
Building improvements		shorter of remaining life of the building or useful life
Building (leasehold interest)		lesser of 40 years or remaining term of the lease
Property under capital lease		remaining lease term
Furniture and fixtures		four to seven years
Tenant improvements		shorter of remaining term of the lease or useful life

Summary of identified intangible assets (acquired above-market leases and in-place leases) and intangible liabilities (acquired below-market leases)

The following summarizes our identified intangible assets (acquired above-market leases and in-place leases) and intangible liabilities (acquired below-market leases) as of December 31, 2015 and 2014 (in thousands):



	December 31, 2015			December 31, 2014
				(as adjusted)
Identified intangible assets (included in other assets):
Gross amount	$	307,824		$	297,238
Accumulated amortization	(235,040		)	(216,841		)
Net	$	72,784		$	80,397
Identified intangible liabilities (included in deferred revenue):
Gross amount	$	523,228		$	450,326
Accumulated amortization	(346,857		)	(322,694		)
Net	$	176,371		$	127,632

Schedule of estimated annual amortization of acquired below-market leases, net of acquired above-market leases

The estimated annual amortization of acquired below-market leases, net of acquired above-market leases (a component of rental revenue), for each of the five succeeding years is as follows (in thousands):



2016	$	3,017
2017	4,994
2018	6,548
2019	7,128
2020	6,919

Schedule of estimated annual amortization of all other identifiable assets

The estimated annual amortization of all other identifiable assets (a component of depreciation and amortization expense) including tenant improvements for each of the five succeeding years is as follows (in thousands):



2016	$	4,600
2017	3,326
2018	2,177
2019	1,751
2020	1,588