Three Months
Ended
March 31, 2012

Three Months
Ended
March 31, 2011

Supplemental schedule of non-cash investing and financing activities:

Distribution payable on preferred stock

$

5,214

$

—

Exchange of Units for common stock:

Noncontrolling interest

$

(99

)

$

—

Common stock

—

Additional paid-in-capital

99

—

$

—

$

—

Write-off of fully depreciated assets

$

(13,196

)

$

(13,514

)

Mortgage loan payable assumed in conjunction with a property acquisition

$

(12,026

)

$

—

Notes receivable issued in conjunction with certain property sales

$

—

$

1,029