Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2014

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 March 31, 2014 and December 31, 2013 (in thousands):

	March 31, 2014			December 31, 2013
Identified intangible assets (included in other assets):
Gross amount	$	779,913		$	746,704
Accumulated amortization	(364,946		)	(343,339		)
Net	$	414,967		$	403,365
Identified intangible liabilities (included in deferred revenue):
Gross amount	$	679,220		$	671,380
Accumulated amortization	(446,119		)	(429,138		)
Net	$	233,101		$	242,242

Schedule of marketable securities

At March 31, 2014 and December 31, 2013, we held the following marketable securities (in thousands):

	March 31, 2014		December 31, 2013
Equity marketable securities	$	3,865	$	4,307
Commercial mortgage-backed securities	25,028		24,419
Rake bonds	3,237		3,323
Total marketable securities available-for-sale	$	32,130	$	32,049