Deferred Revenue and Acquisition Related Liabilities, net (Tables)

12 Months Ended

Dec. 31, 2015

Deferred Revenue Disclosure [Abstract]

Deferred Revenue and Acquisition-related Liabilities

Deferred revenue and acquisition-related liabilities, net consists of the following at December 31, 2015 and 2014:



	December 31,
	2015		2014
	(in thousands)
Deferred revenue related to tenant-funded tenant improvements ⁽¹⁾	$	90,825	$	85,757
Other deferred revenue	5,007		3,055
Acquisition-related intangible liabilities, net ⁽²⁾	32,324		43,427
Total	$	128,156	$	132,239

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(1)	Excludes deferred revenue related to tenant-funded tenant improvements related to properties held for sale at December 31, 2015.


(2)	See Note 2 “Basis of Presentation and Significant Accounting Policies” and Note 5 “Deferred Leasing Costs and Acquisition-related Intangible Assets and Liabilities, net” for additional information.

Estimated Amortization of Deferred Revenue Related to Tenant-funded Improvements

During the years ended December 31, 2015, 2014, and 2013, $13.3 million, $11.0 million and $10.7 million, respectively, of deferred revenue related to tenant-funded tenant improvements (including discontinued operations for the years ended December 31, 2014 and 2013) was amortized and recognized as rental income. The following is the estimated amortization of deferred revenue related to tenant-funded tenant improvements as of December 31, 2015 for the next five years and thereafter:



Year Ending	(in thousands)
2016	$	12,536
2017	11,924
2018	11,285
2019	9,761
2020	9,230
Thereafter	36,089
Total	$	90,825