Equity (Details 1) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Distributions Per Share
Total distributions paid	$ 0.6500	$ 0.6500	$ 0.6500
Ordinary income
Distributions Per Share
Total distributions paid	0.3220	0.3528	0.3104
Capital gain
Distributions Per Share
Total distributions paid	0.0000	0.0000	0.0110
Return of capital
Distributions Per Share
Total distributions paid	$ 0.3280	$ 0.2972	$ 0.3286