v3.7.0.1
Acquisitions - Purchase Price Allocation for Acquisitions (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Business Acquisition [Line Items]    
Direct financing $ 3,546 $ 544
Business combination, recognized identifiable assets acquired and liabilities assumed, assets 197,003 245,575
Land    
Business Acquisition [Line Items]    
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment 11,483 48,946
Land Improvements    
Business Acquisition [Line Items]    
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment 15,388 19,664
Buildings and Other Improvements    
Business Acquisition [Line Items]    
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment 147,306 154,116
Acquired In-Place Leases    
Business Acquisition [Line Items]    
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment 20,838 24,886
Acquired Above-Market Leases    
Business Acquisition [Line Items]    
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment 9,568 9,285
Acquired Below-Market Leases    
Business Acquisition [Line Items]    
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment $ (11,126) $ (11,866)