Subsequent Events - Subsequent Dispositions (Details) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 31, 2016 USD ($) property	Sep. 30, 2016 USD ($) property	Sep. 30, 2016 USD ($) property	Sep. 30, 2015 USD ($)
Subsequent Event [Line Items]
Number of real estate properties sold | property		453	587
Proceeds from the sale of real estate properties | $		$ 56,200	$ 71,894	$ 0
Subsequent Event
Subsequent Event [Line Items]
Number of real estate properties sold | property	36
Proceeds from the sale of real estate properties | $	$ 5,700