Organization and Business Operations (Details) $ / shares in Units, shares in Thousands, $ in Thousands			3 Months Ended
	Mar. 31, 2017 USD ($) real_estate_investment metropolitan property shares	Jun. 06, 2014 USD ($)	Mar. 31, 2017 USD ($) real_estate_investment metropolitan segment property	Mar. 31, 2016 USD ($)	Jan. 01, 2017 $ / shares
Organization and Business Operations [Line Items]
Number of reportable business segments | segment			2
Number of Company owned real estate investments | real_estate_investment	49		49
Number of Company owned properties | property	84		84
Number of metropolitan statistical areas in which Company owns real estate investments | metropolitan	46		46
Redemption of common stock			$ 12,101	$ 8,393
Initial Public Offering [Member]
Organization and Business Operations [Line Items]
Common stock offering, gross proceeds raised		$ 1,716,046
DRIP Offering [Member]
Organization and Business Operations [Line Items]
Share price (in dollars per share) | $ / shares					$ 9.519
DRIP Offering [Member] | Maximum [Member]
Organization and Business Operations [Line Items]
Share price (in dollars per share) | $ / shares					$ 9.50
Reinvestment in additional shares at percentage of fair market value per share					95.00%
Initial Public Offering and DRIP Offerings [Member]
Organization and Business Operations [Line Items]
Common stock offering, gross proceeds raised	$ 1,896,389
Common stock offering, shares issued | shares	191,535
Redemption of common stock	$ 59,963
Offering costs, selling commissions and dealer manager fees	$ 174,798
Consolidated Partnership [Member]
Organization and Business Operations [Line Items]
Number of Company owned real estate investments | real_estate_investment	1		1