Employee Benefit Plans (Tables)

9 Months Ended

Jun. 30, 2018

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						Nine Months Ended
	June 30, 2018			July 1, 2017			June 30, 2018			July 1, 2017
U.S. Plans
Service cost	$	5,634		$	6,044		$	16,901		$	18,087
Interest cost	8,073			7,659			24,219			22,930
Expected return on plan assets	(13,575		)	(13,627		)	(40,726		)	(40,882		)
Amortization of prior service cost (credit)	46			46			140			140
Amortization of actuarial loss	6,903			8,465			20,707			25,303
Pension expense for U.S. defined benefit plans	$	7,081		$	8,587		$	21,241		$	25,578
Non-U.S. Plans
Service cost	$	1,486		$	1,499		$	4,475		$	4,545
Interest cost	1,066			794			3,213			2,291
Expected return on plan assets	(1,260		)	(1,180		)	(3,793		)	(3,433		)
Amortization of prior service cost (credit)	(15		)	(26		)	(44		)	(80		)
Amortization of actuarial loss	630			1,145			1,902			3,374
Curtailment gain	—			(150		)	—			(150		)
Pension expense for non-U.S. defined benefit plans	$	1,907		$	2,082		$	5,753		$	6,547

Defined Contribution Plan Disclosures

Pension expense for our defined contribution plans consists of:

	Three Months Ended				Nine Months Ended
	June 30, 2018		July 1, 2017		June 30, 2018		July 1, 2017
U.S. defined contribution plans	$	4,374	$	3,926	$	12,482	$	11,182
Non-U.S. defined contribution plans	1,460		1,534		4,719		4,366
Total pension expense for defined contribution plans	$	5,834	$	5,460	$	17,201	$	15,548