XML 48 R37.htm IDEA: XBRL DOCUMENT v3.6.0.2
Stock-based Payment Compensation (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Jan. 31, 2017
Jan. 31, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Total stock-based compensation $ 5,520 $ 5,386 $ 10,605 $ 10,800
General and administrative        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Total stock-based compensation 4,712 4,710 8,996 9,438
Yard Operations        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Total stock-based compensation $ 808 $ 676 $ 1,609 $ 1,362