Employee Benefit Plans (Tables)

3 Months Ended

Dec. 28, 2019

Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]

Net Periodic Benefit Costs

Net periodic benefit costs for our defined benefit pension plans are as follows:

	Three Months Ended
	December 28, 2019			December 29, 2018
U.S. Plans
Service cost	$	5,759		$	5,251
Interest cost	7,649			9,231
Expected return on plan assets	(11,021		)	(11,264		)
Amortization of prior service cost (credit)	33			46
Amortization of actuarial loss	6,329			6,660
Pension expense for U.S. defined benefit plans	$	8,749		$	9,924
Non-U.S. Plans
Service cost	$	1,671		$	1,246
Interest cost	697			1,101
Expected return on plan assets	(1,139		)	(1,298		)
Amortization of prior service cost (credit)	—			(5		)
Amortization of actuarial loss	1,216			640
Pension expense for non-U.S. defined benefit plans	$	2,445		$	1,684

Defined Contribution Plan Disclosures

Pension expense for our defined contribution plans consists of:

	Three Months Ended
	December 28, 2019		December 29, 2018
U.S. defined contribution plans	$	5,398	$	4,614
Non-U.S. defined contribution plans	1,402		1,196
Total pension expense for defined contribution plans	$	6,800	$	5,810