Common Stock (Details) - $ / shares		3 Months Ended		24 Months Ended
	Feb. 01, 2016	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)		165,028,289		165,028,289	162,529,811
Shares issued (in shares)	2,515,406
Dividends declared (in dollars per share)		$ 0.115	$ 0.115	$ 0.46
Common stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)		165,028,289		165,028,289	162,529,811
OP units converted to common stock (in shares)	2,515,406