Equity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
Shares and Units [Abstract]
OP units outstanding (shares)	245.5	245.5	245.5
OP units owned by the Company (shares)	95.6	95.6	95.6
OP units owned by the Company, percent			38.90%
OP units not owned by the Company (shares)	149.9	149.9	149.9
OP units not owned by the Company, percent			61.10%
Dividends and Distributions [Abstract]
Partial dividend paid, per common share	$ 0.0795
Partial dividend paid, per OP unit	$ 0.0795
Full quarter dividend, per share		$ 0.085
Dividends paid to common shareholders			$ 7.6
Distributions paid to OP unitholders			$ 11.9
Dividends paid, percent taxable as ordinary dividends			100.00%