Fair Value of Financial Instruments - Fair Value, by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jul. 25, 2016	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage notes payable		$ 502,808	$ 524,262
Mortgage premium, net		315	676
JPMorgan Chase Bank, N.A. | Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Extension term	1 year
Mortgage notes payable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage notes payable		502,808	524,262
Significant Unobservable Inputs Level 3 | Mortgage notes payable | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value		508,842	532,384
Mortgage notes payable		508,500	531,700
Mortgage premium, net		300	700
Significant Unobservable Inputs Level 3 | Mortgage notes payable | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value		500,768	534,041
Significant Unobservable Inputs Level 3 | Revolving Credit Facility | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value		671,023	717,286
Significant Unobservable Inputs Level 3 | Revolving Credit Facility | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value		$ 671,023	$ 717,286