Financing Arrangements - Schedule of long-term debt (Details) - USD ($) $ in Thousands |
Jul. 31, 2018 |
Jun. 28, 2018 |
Jul. 31, 2017 |
|---|---|---|---|
| Debt Instrument [Line Items] | |||
| Total long-term debt, net of unamortized debt issuance costs | $ 197,302 | $ 126,000 | |
| Current portion of long-term debt | (10,000) | 0 | |
| Long-term debt, net of unamortized debt issuance costs and excluding current portion | 187,302 | 126,000 | |
| Line of Credit | |||
| Debt Instrument [Line Items] | |||
| Unamortized debt issuance costs | (2,698) | 0 | |
| Revolving credit loan | Line of Credit | |||
| Debt Instrument [Line Items] | |||
| Loans outstanding | 0 | $ 400,000 | 126,000 |
| Tranche A term loan | Line of Credit | |||
| Debt Instrument [Line Items] | |||
| Loans outstanding | $ 200,000 | $ 200,000 | $ 0 |