Notes Payable (Tables)

6 Months Ended

Jun. 30, 2011

Notes Payable [Abstract]

Notes Payable

	June 30,		December 31,
	2011		2010
6.30% Senior Notes	$	298,714	$	298,637
$600.0 million Revolving Loan Facility		95,000		—
Total notes payable	$	393,714	$	298,637