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Supplemental Disclosure of Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2012
Supplemental Cash Flow Elements [Abstract]  
Supplemental cash flow information
 
 
Years Ended December 31,
 
 
2012
 
2011
 
2010
Cash paid during the year for:
 
 
 
 
 
 
Interest, net of interest capitalized
 
$
21,276

 
$
28,871

 
$
31,971

Income taxes
 
$
402

 
$
759

 
$
4,915

Non-cash operating activities decrease:
 
 
 
 
 
 
Real estate not owned
 
$
—

 
$
(866
)
 
$
(9,661
)
Non-cash investing activities:
 
 
 
 
 
 
Distributions from unconsolidated entities
 
$
—

 
$
—

 
$
294