Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2013

Significant Accounting Policies

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, 2013 and December 31, 2012 (amounts in thousands):

	March 31, 2013			December 31, 2012
Identified intangible assets (included in other assets):
Gross amount	$	725,708		$	725,861
Accumulated amortization	(279,714		)	(263,107		)
Net	$	445,994		$	462,754
Identified intangible liabilities (included in deferred revenue):
Gross amount	$	652,117		$	651,921
Accumulated amortization	(374,239		)	(357,225		)
Net	$	277,878		$	294,696

Schedule of marketable securities

At March 31, 2013 and December 31, 2012, we held the following marketable securities (in thousands):

	March 31, 2013		December 31, 2012
Level 1 — Equity marketable securities	$	3,903	$	2,202
Level 2 — Commercial mortgage-backed securities	15,521		15,575
Level 3 — Rake bonds	3,570		3,652
Total marketable securities available-for-sale	$	22,994	$	21,429