Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Sep. 29, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of outstanding notional contract and fair value amount of hedge contracts

The outstanding notional contract and fair value asset (liability) amounts of non-designated hedge contracts, with maximum maturity of two months, are as follows (in thousands):

	U.S. Notional Contract Value						U.S. Fair Value
	Fiscal 2018 year-end			Fiscal 2017 year-end			Fiscal 2018 year-end			Fiscal 2017 year-end
Euro currency hedge contracts
Purchase	$	126,589		$	109,641		$	(1,554	)	$	(1,397	)
Sell	$	(8,701	)	$	—		$	43		$	—
South Korean Won currency hedge contracts
Purchase	$	2,778		$	—		$	27		$	—
Sell	$	(31,920	)	$	(28,996	)	$	(109	)	$	551
Chinese RMB currency hedge contracts
Purchase	$	5,852		$	—		$	(33	)	$	—
Sell	$	(51,137	)	$	(13,744	)	$	300		$	128
Japanese Yen currency hedge contracts
Sell	$	(27,473	)	$	(25,126	)	$	637		$	591
Singapore Dollar currency hedge contracts
Purchase	$	30,127		$	3,668		$	(131	)	$	(4	)
Other foreign currency hedge contracts
Purchase	$	4,091		$	—		$	(13	)	$	—
Sell	$	(5,934	)	$	(2,971	)	$	(39	)	$	(74	)