XML 51 R39.htm IDEA: XBRL DOCUMENT v3.8.0.1
Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Oct. 31, 2017
Jul. 31, 2017
Property, Plant and Equipment [Line Items]    
Total cost $ 620,407 $ 590,675
Less accumulated depreciation (174,273) (165,437)
Property, plant and equipment, net 446,134 425,238
Land    
Property, Plant and Equipment [Line Items]    
Total cost 49,878 48,812
Building and Building Improvements    
Property, Plant and Equipment [Line Items]    
Total cost 399,619 380,139
Machinery and Equipment    
Property, Plant and Equipment [Line Items]    
Total cost $ 170,910 $ 161,724