Annual report pursuant to Section 13 and 15(d)

Description of Business and Basis of Presentation - Narrative (Details)

v3.8.0.1
Description of Business and Basis of Presentation - Narrative (Details)
a in Thousands
12 Months Ended
Oct. 01, 2015
segment
Sep. 30, 2017
USD ($)
a
classification
segment
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
segment
Property, Plant and Equipment [Line Items]        
Number of business segments | segment 3 3   3
Net loss attributable to parent   $ 46,630 $ 35,307 $ 32,647
Decrease in working capital     1,184,000  
Citree        
Property, Plant and Equipment [Line Items]        
Net loss attributable to noncontrolling interest   $ 91,432 $ 69,230 $ 64,014
Land        
Property, Plant and Equipment [Line Items]        
Area of land owned (in acres) | a   122    
Number of primary classifications | classification   2    
Mineral Rights        
Property, Plant and Equipment [Line Items]        
Area of land owned (in acres) | a   90