Income Taxes (Reconciliation Of The Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Income Tax Disclosure [Abstract]
Domestic	$ 77,007	$ 82,848	$ 78,074
Foreign	104,704	90,012	105,760
Earnings before income taxes	$ 181,711	$ 172,860	$ 183,834
Federal statutory income tax rate	35.00%	35.00%	35.00%
R&D and foreign tax credits	(3.80%)	(30.60%)	(2.70%)
Divestiture impacts	(3.20%)	(0.00%)	(0.00%)
Foreign tax rates	(2.40%)	(2.70%)	(4.80%)
Equity-based compensation	(1.20%)	(0.00%)	(0.00%)
Export and manufacturing incentives	(0.90%)	(1.00%)	(0.70%)
Change in valuation allowance for deferred taxes	(0.40%)	0.90%	1.10%
Change in enacted tax rates	0.00%	(0.90%)	(0.30%)
Repatriated earnings	0.00%	26.80%	0.00%
State taxes, net of federal benefit	0.40%	0.50%	0.80%
Other	(0.80%)	0.50%	(0.10%)
Effective income tax rate	22.70%	28.50%	28.30%