QUARTERLY FINANCIAL STATEMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2012

QUARTERLY FINANCIAL STATEMENT INFORMATION (UNAUDITED)

Schedule of Quarterly Financial Information

	2012
	First		Second		Third		Fourth
Total revenue	$	155,516	$	157,649	$	164,524	$	166,659
Net income attributable to common stockholders	15,388		13,727		36,413		69,774
Basic earnings per share data:
Net income attributable to common stockholders	0.32		0.28		0.72		1.36
Diluted earnings per share data:
Net income attributable to common stockholders	0.31		0.28		0.71		1.34

	2011
	First		Second		Third		Fourth
Total revenue	$	136,764	$	136,168	$	140,030	$	148,594
Net income attributable to common stockholders	7,224		8,195		8,508		13,929
Basic earnings per share data:
Net income attributable to common stockholders	0.19		0.21		0.20		0.29
Diluted earnings per share data:
Net income attributable to common stockholders	0.19		0.20		0.20		0.29