We sponsor several defined benefit pension plans. Additionally, we provide varying levels of postretirement health care and life insurance benefits to certain U.S. employees.

The table below summarizes the components of net periodic pension income:



	Three Months Ended September 30,
(in thousands)	2018			2017
Service cost	$	411		$	404
Interest cost	7,990			7,657
Expected return on plan assets	(13,462		)	(14,090		)
Amortization of transition obligation	23			23
Amortization of prior service (credit) cost	(5		)	173
Recognition of actuarial losses	1,695			1,710
Net periodic pension income	$	(3,348	)	$	(4,123	)

The table below summarizes the components of net periodic other postretirement benefit cost:



	Three Months Ended September 30,
(in thousands)	2018			2017
Interest cost	$	153		$	157
Amortization of prior service credit	(22		)	(6		)
Recognition of actuarial loss	62			70
Net periodic other postretirement benefit cost	$	193		$	221

In accordance with ASU 2017-07, as described in Note 3, the service cost of $0.4 million for the three months ended September 30, 2018 and 2017 was reported as a component of cost of goods sold and operating expense. The other components of net periodic benefit income totaling a net benefit of $3.6 million for the three months ended September 30, 2018 were presented as a component of other income, net. For the three months ended September 30, 2017, we reclassified a net benefit of $3.0 million and $1.3 million from cost of goods sold and operating expense, respectively to other income, net.