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 December 31,						Six Months Ended December 31,
(in thousands)	2018			2017			2018			2017
Service cost	$	407		$	406		$	818		$	810
Interest cost	7,970			7,678			15,960			15,335
Expected return on plan assets	(13,434		)	(14,132		)	(26,896		)	(28,221		)
Amortization of transition obligation	23			23			45			46
Amortization of prior service (credit) cost	(5		)	(41		)	(10		)	132
Recognition of actuarial losses	1,679			1,718			3,374			3,428
Net periodic pension income	$	(3,360	)	$	(4,348	)	$	(6,709	)	$	(8,470	)

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



	Three Months Ended December 31,						Six Months Ended December 31,
(in thousands)	2018			2017			2018			2017
Interest cost	$	153		$	157		$	307		$	314
Amortization of prior service credit	(22		)	(6		)	(45		)	(11		)
Recognition of actuarial loss	62			70			124			140
Net periodic other postretirement benefit cost	$	193		$	221		$	386		$	443

In accordance with ASU 2017-07, as described in Note 2, the service cost of $0.4 million and $0.8 million for the three and six months ended December 31, 2018 and 2017 was reported as a component of cost of goods sold and operating expense. The other components of net periodic pension income and net periodic other postretirement benefit cost totaling a net benefit of $3.6 million and $7.1 million for the three and six months ended December 31, 2018 were presented as a component of other income, net. For the three and six months ended December 31, 2017, we reclassified a net benefit of $3.0 million and $6.1 million, respectively, from cost of goods sold to other income, net and a net benefit of $1.5 million and $2.8 million, respectively, from operating expense to other income, net.