Retirement Plans and Other Post-Retirement Benefits

9 Months Ended

Sep. 30, 2019

Compensation And Retirement Disclosure [Abstract]

Retirement Plans and Other Post-Retirement Benefits

11. RETIREMENT PLANS AND OTHER POST-RETIREMENT BENEFITS

The following tables provide information with respect to the net periodic costs of our pension and post-retirement medical benefit plans included in continuing operations.

	Three months ended September 30
In thousands	2019			2018
Pension Benefits
Service cost	$	216		$	595
Interest cost		3,287			3,241
Expected return on plan assets		(3,895	)		(5,531	)
Amortization of prior service cost		64			5
Amortization of unrecognized loss		819			2,060
Total net periodic benefit cost	$	491		$	370
Other Benefits
Service cost	$	7		$	16
Interest cost		67			80
Amortization of prior service credit		(2	)		—
Amortization of actuarial gain		(293	)		(16	)
Total net periodic benefit cost	$	(221	)	$	80

	Nine months ended September 30
In thousands	2019			2018
Pension Benefits
Service cost	$	1,073		$	1,784
Interest cost		10,074			9,723
Expected return on plan assets		(11,290	)		(16,592	)
Amortization of prior service cost		152			16
Amortization of unrecognized loss		2,383			6,179
Total net periodic benefit cost	$	2,392		$	1,110
Other Benefits
Service cost	$	25		$	46
Interest cost		235			239
Amortization of prior service credit		(7	)		—
Amortization of actuarial gain		(639	)		(49	)
Total net periodic benefit cost	$	(386	)	$	236

In April 2019, we informed participants that our qualified pension plan benefits would be frozen as of May 31, 2019 and the plan was terminated June 30, 2019.  We replaced this benefit for active employees with an enhanced defined contribution plan.  In connection with the termination, we remeasured the pension liability and recognized a gain of $1.9 million in the second quarter of 2019 as an adjustment to other comprehensive income (loss).