Subsequent Events (Details) ft² in Thousands			12 Months Ended
	Feb. 20, 2018 $ / shares	Jul. 12, 2016 shares	Dec. 31, 2017 $ / shares shares	Dec. 31, 2016 ft² $ / shares	Dec. 31, 2015 $ / shares
Subsequent Events (Details) [Line Items]
Equity redemption of OP Units (in shares) | shares			150,503
Common stock issued (in shares) | shares		6,555,000
Area of real estate property (in Square Feet) | ft²				596
Dividends per share (in dollars per share) | $ / shares			$ 0.75	$ 0.72	$ 0.68
Subsequent Event
Subsequent Events (Details) [Line Items]
Dividends per share (in dollars per share) | $ / shares	$ 0.1950