Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2017

Accounting Policies [Abstract]

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 September 30, 2017 and December 31, 2016 (in thousands):

	September 30, 2017			December 31, 2016
Identified intangible assets (included in other assets):
Gross amount	$	474,493		$	651,099
Accumulated amortization	(398,047		)	(410,930		)
Net(1)	$	76,446		$	240,169
Identified intangible liabilities (included in deferred revenue):
Gross amount	$	639,511		$	655,930
Accumulated amortization	(474,365		)	(464,749		)
Net(1)	$	165,146		$	191,181

(1) As of September 30, 2017 and December 31, 2016, $3.9 million and none, respectively and $1.1 million and none, respectively, of net intangible assets and net intangible liabilities, were reclassified to assets held for sale and liabilities related to assets held for sale.

Schedule of marketable securities

At September 30, 2017 and December 31, 2016, we held the following marketable securities (in thousands):

	September 30, 2017		December 31, 2016
Equity marketable securities	$	—	$	48,315
Commercial mortgage-backed securities	28,802		36,795
Total marketable securities available-for-sale	$	28,802	$	85,110