Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Details)	6 Months Ended
	Jun. 30, 2015
Land
Property Plant And Equipment [Line Items]
Estimated useful lives of assets	Not depreciated
Building
Property Plant And Equipment [Line Items]
Estimated useful lives of assets	30 years
Improvements
Property Plant And Equipment [Line Items]
Estimated useful lives of assets	15 years
Furniture, Fixtures, and Equipment
Property Plant And Equipment [Line Items]
Estimated useful lives of assets	3 years
Intangible Lease Assets
Property Plant And Equipment [Line Items]
Estimated useful lives of assets	6 months