7.	Pension and other postretirement plans

The components of net periodic pension cost for the three and nine months ended July 31, 2017 and July 31, 2016 were:

	U.S.						International
Three Months Ended	2017			2016			2017			2016
Service cost	$	3,104		$	2,873		$	604		$	723
Interest cost		3,180			3,983			401			600
Expected return on plan assets		(5,143	)		(4,917	)		(334	)		(368	)
Amortization of prior service cost (credit)		12			19			(76	)		(25	)
Amortization of net actuarial loss		2,366			2,120			664			468
Settlement loss		648			—			—			—
Total benefit cost	$	4,167		$	4,078		$	1,259		$	1,398

	U.S.						International
Nine Months Ended	2017			2016			2017			2016
Service cost	$	9,346		$	8,618		$	1,763		$	2,143
Interest cost		9,635			11,949			1,169			1,822
Expected return on plan assets		(15,585	)		(14,750	)		(978	)		(1,133	)
Amortization of prior service cost (credit)		35			57			(223	)		(70	)
Amortization of net actuarial loss		7,150			6,360			1,926			1,404
Settlement loss		648			—			—			—
Total benefit cost	$	11,229		$	12,234		$	3,657		$	4,166

The components of other postretirement benefit cost for the three and nine months ended July 31, 2017 and July 31, 2016 were:

	U.S.						International
Three Months Ended	2017			2016			2017			2016
Service cost	$	188		$	212		$	5		$	4
Interest cost		576			731			5			5
Amortization of prior service cost (credit)		(41	)		(67	)		—			—
Amortization of net actuarial (gain) loss		217			171			(4	)		(6	)
Total benefit cost	$	940		$	1,047		$	6		$	3


	U.S.						International
Nine Months Ended	2017			2016			2017			2016
Service cost	$	563		$	637		$	15		$	12
Interest cost		1,728			2,192			15			17
Amortization of prior service cost (credit)		(123	)		(201	)		—			—
Amortization of net actuarial (gain) loss		651			514			(13	)		(18	)
Total benefit cost	$	2,819		$	3,142		$	17		$	11