Employee Benefit Plans (Defined Contribution Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Defined Contribution Pension Plans
Defined Contribution Plan Disclosure
Pension expense for defined contribution plans	$ 8,594	$ 6,053	$ 15,394	$ 11,863
U.S. Plans
Defined Contribution Plan Disclosure
Pension expense for defined contribution plans	7,206	4,713	12,604	9,327
Non-U.S. Plans
Defined Contribution Plan Disclosure
Pension expense for defined contribution plans	$ 1,388	$ 1,340	$ 2,790	$ 2,536