Secured Notes Payable and Revolving Credit Facility, Net - Schedule of Loan Costs and Accumulated Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Debt Disclosure [Abstract]
Accumulated amortization on deferred loan costs	$ 18,200		$ 18,000
Loan Costs Included In Interest Expense
Deferred loan cost amortization	2,309	$ 2,098
Interest Expense
Loan Costs Included In Interest Expense
Loan costs expensed	404	0
Deferred loan cost amortization	1,905	2,098
Total	$ 2,309	$ 2,098