Quarterly Operating Results (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Year Ended December 31, 2012
	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
Total revenues	$	77,474		$	94,167	$	104,305	$	104,742
Net income (loss)	(2,837		)	10,027		12,105		7,213
Net income (loss) attributable to the Company	(2,791		)	9,864		11,918		7,088
Net income (loss) attributable to common shareholders	(7,247		)	5,407		7,462		2,632
Net income (loss) per share available to common shareholders, basic and diluted	$	(0.14	)	$	0.10	$	0.13	$	0.04
	Year Ended December 31, 2011
	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
Total revenues	$	42,665		$	73,110	$	87,803	$	84,409
Net income (loss)	(3,044		)	4,299		5,838		8,106
Net income (loss) attributable to the Company	(3,044		)	4,214		5,724		7,962
Net income (loss) attributable to common shareholders	(3,591		)	1,753		2,825		3,456
Net income (loss) per share available to common shareholders, basic and diluted	$	(0.09	)	$	0.03	$	0.05	$	0.07