Non-controlling Interests (Details) (USD $) In Thousands, except Share data, unless otherwise specified							0 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Noncontrolling Interest [Member]	Dec. 31, 2013 Noncontrolling Interest [Member]	Sep. 30, 2013 Noncontrolling Interest [Member]	Dec. 31, 2012 Noncontrolling Interest [Member]	Jan. 02, 2013 Non-controlling interest in Operating Partnership [Member] Noncontrolling Interest [Member]	Sep. 30, 2014 Non-controlling interest in Operating Partnership [Member] Noncontrolling Interest [Member]	Sep. 30, 2014 Non-controlling interest of joint venture partner [Member] Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Operating Partnership Units Issued							212,000
Holding Period Operating Partnership Units								2 years
Operating Partnership Units								212,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners								0.60%	5.00%
Stockholders' Equity Attributable to Noncontrolling Interest	$ 6,730	$ 5,648	$ 6,730	$ 5,648	$ 4,629	$ 0			$ 1,700