Retirement benefits

9 Months Ended

Mar. 31, 2018

Net pension benefit cost recognized included the following components:



	Three Months Ended						Nine Months Ended
	March 31,						March 31,
	2018			2017			2018			2017
Service cost	$	20,711		$	23,632		$	62,011		$	70,971
Interest cost	36,027			31,734			107,851			93,202
Expected return on plan assets	(64,437		)	(59,480		)	(192,963		)	(177,277		)
Amortization of prior service cost	1,575			1,702			5,190			5,101
Amortization of net actuarial loss	36,278			52,805			110,428			158,557
Amortization of initial net obligation	4			4			14			14
Net pension benefit cost	$	30,158		$	50,397		$	92,531		$	150,568

During the three months ended March 31, 2018 and 2017, the Company recognized $(100) and $1,034, respectively, in (income) expense related to other postretirement benefits. During the nine months ended March 31, 2018 and 2017, the Company recognized $2,080 and $3,266, respectively, in expense related to other postretirement benefits.