XML 42 R30.htm IDEA: XBRL DOCUMENT v3.7.0.1
Long-Term Debt (Schedule Of Aggregate Maturities For Debt Outstanding) (Details) - USD ($)
$ in Thousands
Jan. 31, 2017
Jul. 31, 2016
Jan. 31, 2016
Debt Instrument [Line Items]      
2017 (February 2017 through July 2017) $ 19,051    
2018 38,397    
2019 38,455    
2020 38,516    
2021 38,580    
Thereafter 1,086,577    
Total debt $ 1,259,576 $ 702,320 $ 695,535