PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2019

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

Summary of the components of net periodic benefit cost

	Three Months Ended September 30
	Nonunion Defined				Supplemental				Postretirement
	Benefit Pension Plan				Benefit Plan				Health Benefit Plan
	2019		2018		2019		2018		2019		2018
	(in thousands)
Service cost	$	—	$	—	$	—	$	—	$	80	$	92
Interest cost		138		1,136		9		27		303		209
Expected return on plan assets		29		(363)		—		—		—		—
Amortization of prior service credit		—		—		—		—		(8)		(23)
Pension settlement expense(1)		2,530		518		—		—		—		—
Amortization of net actuarial loss(2)		50		494		24		20		225		76
Net periodic benefit cost	$	2,747	$	1,785	$	33	$	47	$	600	$	354

	Nine Months Ended September 30
	Nonunion Defined				Supplemental				Postretirement
	Benefit Pension Plan				Benefit Plan				Health Benefit Plan
	2019		2018		2019		2018		2019		2018
	(in thousands)
Service cost	$	—	$	—	$	—	$	—	$	240	$	275
Interest cost		624		3,259		29		81		909		628
Expected return on plan assets		(60)		(1,142)		—		—		—		—
Amortization of prior service credit		—		—		—		—		(25)		(70)
Pension settlement expense(1)		4,164		1,603		—		—		—		—
Amortization of net actuarial loss(2)		260		1,864		71		60		674		228
Net periodic benefit cost	$	4,988	$	5,584	$	100	$	141	$	1,798	$	1,061

(1) The presentation of net periodic pension cost for the three and nine months ended September 30, 2019 excludes a $4.0 million noncash pension termination expense which is further described within this Note.

(2) The Company amortizes actuarial losses over the average remaining active service period of the plan participants and does not use a corridor approach.

Schedule of changes in the projected benefit obligation and plan assets of the nonunion defined benefit pension plan

	Nonunion Defined
	Benefit Pension Plan
	(in thousands)
Change in benefit obligations
Benefit obligations at December 31, 2018	$	33,373
Interest cost		624
Actuarial loss(1)		300
Benefits paid		(34,297)
Benefit obligations at September 30, 2019		—
Change in plan assets
Fair value of plan assets at December 31, 2018		26,646
Actual return on plan assets		(30)
Employer contributions		7,710
Benefits paid		(34,297)
Fair value of plan assets at September 30, 2019		29
Funded status at period end(2)	$	29
Accumulated benefit obligation	$	—

(1) The plan recognized an actuarial loss related to the settlement of benefit obligations for missing participants which were transferred to the PBGC, partially offset by an actuarial gain related to the difference between the actual amounts distributed for lump-sum benefits and the annuity contract purchase versus the actuarial estimates made for these obligations as of the December 31, 2018 measurement date.

(2) Recognized within other current assets in the accompanying consolidated balance sheet at September 30, 2019.