Revolving Credit Facilities and Term Loan (Tables)

3 Months Ended

Mar. 31, 2012

Revolving Credit Facilities and Term Loan [Abstract]

Information Regarding the Company's Revolving Credit Facilities , Term Loan and mortgages payable

	Carrying Value at		Weighted-Average Interest Rate at
	March 31, 2012		March 31, 2012			Maturity Date
Unsecured indebtedness:
Unsecured Credit Facility	$	76.0		2.7	%	February 2016
PNC Facility		—		1.9	%	February 2016
Unsecured Term Loan — Tranche 1		50.0		1.9	%	January 2017
Unsecured Term Loan — Tranche 2		200.0		3.6	%	January 2019
Secured indebtedness:
Secured Term Loan		500.0		2.1	%	September 2014