Annual report pursuant to Section 13 and 15(d)

Segment Information - Narrative (Details)

v3.3.1.900
Segment Information - Narrative (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
classification
Jun. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Sep. 30, 2014
USD ($)
Jun. 30, 2014
USD ($)
Mar. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Sep. 30, 2015
USD ($)
classification
segment
Sep. 30, 2014
USD ($)
Sep. 30, 2013
USD ($)
Property, Plant and Equipment [Line Items]                      
Number of operating segments | segment                 5    
Revenue $ 13,010 $ 68,809 $ 55,122 $ 16,178 $ 14,477 $ 33,875 $ 40,642 $ 14,989 $ 153,119 $ 103,983 $ 101,661
Intersegment                      
Property, Plant and Equipment [Line Items]                      
Revenue                 $ 10,593 $ 9,621 $ 10,981
Land                      
Property, Plant and Equipment [Line Items]                      
Number of primary classifications | classification 2               2