Annual report pursuant to Section 13 and 15(d)

Principal Payments on Term Loan (Detail)

v3.7.0.1
Principal Payments on Term Loan (Detail)
$ in Thousands
Apr. 30, 2017
USD ($)
Line of Credit Facility [Line Items]  
Long-term debt $ 259,531
Term Facility  
Line of Credit Facility [Line Items]  
2018 20,625
2019 25,781
2020 27,500
2021 27,500
2022 $ 158,125