Selected Quarterly Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2011

Selected Quarterly Information (Unaudited)

Schedule of selected quarterly Information

	Quarter
	First		Second		Third		Fourth
	(in thousands)
2011
Total revenues	$	296,574		309,945		297,749		290,909
Net income		45,633		49,970		39,834		40,022
Earnings per share:
Basic	$	0.53		0.58		0.46		0.47
Diluted	$	0.53		0.58		0.46		0.47

	Quarter
	First		Second		Third		Fourth
	(in thousands)
2010
Total revenues	$	251,614		257,219		254,807		281,245
Net income		35,909		34,152		40,533		46,365
Earnings per share:
Basic	$	0.42		0.40		0.47		0.54
Diluted	$	0.42		0.40		0.47		0.54