Quarterly report pursuant to Section 13 or 15(d)

Reportable Segment Information - Additional Information (Details)

v3.10.0.1
Reportable Segment Information - Additional Information (Details)
$ in Thousands
9 Months Ended
Aug. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
segment
Sep. 30, 2017
USD ($)
Segment Reporting [Abstract]      
Number of operating segments   5  
Loss on disposal | $ $ 300 $ 42,898 $ 28,971
Number of reportable segments   1