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

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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