Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.6.0.2
Commitments and Contingencies - Additional Information (Detail)
3 Months Ended 12 Months Ended
Mar. 31, 2017
USD ($)
a
well
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Loss Contingencies [Line Items]        
Estimated cost   $ 9,797,438 $ 3,246,646 $ 2,619,084
Rental revenue   17,305,469 $ 11,888,091 $ 7,170,318
Bear Mountain        
Loss Contingencies [Line Items]        
Expended or accrued for capital improvements   8,000,000    
Rental revenue   $ 5,000,000    
Bear Mountain | Forecast        
Loss Contingencies [Line Items]        
Removal area of old grape vineyards | a 274      
Number of new drilling wells | well 3      
Area of new almond trees | a 800      
Estimated cost $ 8,100,000