Employee Benefit Plans (Net Periodic Benefit Costs) (Details) - Defined Benefit Pension Plans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
U.S. Plans
Defined Benefit Plan Disclosure
Service cost	$ 5,633	$ 6,021	$ 11,267	$ 12,043
Interest cost	8,073	7,635	16,146	15,271
Expected return on plan assets	(13,575)	(13,627)	(27,151)	(27,255)
Amortization of prior service cost (credit)	47	47	94	94
Amortization of actuarial loss	6,902	8,419	13,804	16,838
Pension expense for defined benefit plans	7,080	8,495	14,160	16,991
Non-U.S. Plans
Defined Benefit Plan Disclosure
Service cost	1,519	1,514	2,989	3,046
Interest cost	1,092	746	2,147	1,497
Expected return on plan assets	(1,290)	(1,122)	(2,533)	(2,253)
Amortization of prior service cost (credit)	(15)	(27)	(29)	(54)
Amortization of actuarial loss	648	1,109	1,272	2,229
Pension expense for defined benefit plans	$ 1,954	$ 2,220	$ 3,846	$ 4,465