PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2015

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
	2015		2014		2015		2014		2015		2014
	(in thousands)
Service cost	$	—	$	—	$	—	$	—	$	101	$	70
Interest cost		1,356		1,401		31		49		228		197
Expected return on plan assets		(2,297)		(2,544)		—		—		—		—
Amortization of prior service credit		—		—		—		—		(47)		(47)
Pension settlement expense		762		805		—		—		—		—
Amortization of net actuarial loss		640		595		40		57		213		23
Net periodic benefit cost	$	461	$	257	$	71	$	106	$	495	$	243


	Nine Months Ended September 30
	Nonunion Defined				Supplemental				Postretirement
	Benefit Pension Plan				Benefit Plan				Health Benefit Plan
	2015		2014		2015		2014		2015		2014
	(in thousands)
Service cost	$	—	$	—	$	—	$	—	$	304	$	210
Interest cost		3,899		4,643		92		147		685		591
Expected return on plan assets		(7,058)		(7,980)		—		—		—		—
Amortization of prior service credit		—		—		—		—		(142)		(142)
Pension settlement expense		2,478		5,405		—		—		—		—
Amortization of net actuarial loss		2,276		1,729		120		170		639		69
Net periodic benefit cost	$	1,595	$	3,797	$	212	$	317	$	1,486	$	728

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
Projected benefit obligation at December 31, 2014	$	174,410
Interest cost		3,899
Actuarial gain(1)		(475)
Benefits paid		(16,756)
Projected benefit obligation at September 30, 2015		161,078
Change in plan assets
Fair value of plan assets at December 31, 2014		158,265
Actual loss on plan assets		(3,616)
Employer contributions		50
Benefits paid		(16,756)
Fair value of plan assets at September 30, 2015		137,943
Funded status at September 30, 2015(2)	$	(23,135)
Accumulated benefit obligation	$	161,078

⁽¹⁾

Actuarial gain from remeasurement upon settlements was primarily impacted by changes in the discount rate since the previous remeasurement date. The discount rates used to remeasure the PBO upon settlement were 3.4%, 3.5%, 3.0%, and 3.2% at the September 30, 2015, June 30, 2015, March 31, 2015, and December 31, 2014 measurement dates, respectively.

⁽²⁾

Noncurrent liability recognized within pension and postretirement liabilities in the accompanying consolidated balance sheet at September 30, 2015.