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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Mar. 29, 2019	Dec. 28, 2018	Sep. 28, 2018	Mar. 30, 2018	Mar. 29, 2019	Mar. 30, 2018
Income Tax Contingency [Line Items]
Valuation allowance release related to refundable AMT credit under U.S. Tax Cuts and Jobs Act of 2017						$ 3,300
Income tax expense (benefit)	$ (6,777)			$ 1,015	$ (6,955)	(2,188)
Release of Valuation Allowance, Foreign Tax Credit, Income Tax Expense (Benefit)	$ 7,100				$ 7,100
Foreign Tax Authority
Income Tax Contingency [Line Items]
Income tax expense (benefit)		$ 100	$ 1,600
Release of Valuation Allowance, Foreign Tax Credit, Income Tax Expense (Benefit)		$ 1,800	1,900
Current income tax expense			$ 300
Inland Revenue, Singapore (IRAS) [Member] | Foreign Tax Authority
Income Tax Contingency [Line Items]
Tax refunds						$ 1,300

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of cash received during the period as refunds for the overpayment of taxes.

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