Pension and postretirement benefits (Tables)

6 Months Ended

Jun. 30, 2021

Employee benefits

Components of Net Periodic Pension/Postretirement Benefit Cost

		Pension Plans				OPEB Plan
		Quarters ended June 30,				Quarters ended June 30,
(In thousands)		2021		2020		2021		2020
Personnel Cost:
Service cost	$	-	$	-	$	160	$	178
Other operating expenses:
Interest cost		3,998		5,847		893		1,228
Expected return on plan assets		(9,670)		(9,526)		-		-
Amortization of prior service cost/(credit)		-		-		-		-
Amortization of net loss		4,720		5,220		469		142
Total net periodic pension cost	$	(952)	$	1,541	$	1,522	$	1,548

		Pension Plans				OPEB Plan
		Six months ended June 30,				Six months ended June 30,
(In thousands)		2021		2020		2021		2020
Personnel Cost:
Service cost	$	-	$	-	$	320	$	356
Other operating expenses:
Interest cost		7,996		11,694		1,785		2,456
Expected return on plan assets		(19,341)		(19,052)		-		-
Amortization prior service cost/(credit)		-		-		-		-
Amortization of net loss		9,440		10,440		939		284
Total net periodic pension cost	$	(1,905)	$	3,082	$	3,044	$	3,096

Schedule of expected benefit payments

	For the six months ended		For the year ending
(In thousands)	June 30, 2021		December 31, 2021
Pension Plans	$	114	$	229
OPEB Plan	$	3,030	$	6,333