Tax Treatment of Distributions (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Summary of Tax Treatment of Distributions

The income tax treatment for stockholder distributions reportable for the years ended December 31, 2012, 2011 and 2010 was as follows (amounts in thousands):

	Year Ended December 31,
	2012				2011				2010
Ordinary income	$	73,295	46.9	%	$	65,712	40.9	%	$	47,041	40.3	%
Return of capital	82,870		53.1		94,952		59.1		69,686		59.7
Total	$	156,165	100.0	%	$	160,664	100.0	%	$	116,727	100.0	%