PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2014

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
	2014			2013			2014		2013		2014			2013
	(in thousands)
Service cost	$	—		$	—		$	—	$	—	$	70		$	82
Interest cost	1,401			2,039			49		37		197			188
Expected return on plan assets	(2,544		)	(3,438		)	—		—		—			—
Amortization of prior service credit	—			—			—		—		(47		)	(47		)
Pension settlement expense	805			1,834			—		—		—			—
Amortization of net actuarial loss	595			961			57		65		23			134
Net periodic benefit cost	$	257		$	1,396		$	106	$	102	$	243		$	357

	Nine Months Ended September 30
	Nonunion Defined						Supplemental				Postretirement
	Benefit Pension Plan						Benefit Plan				Health Benefit Plan
	2014			2013			2014		2013		2014			2013
	(in thousands)
Service cost	$	—		$	4,734		$	—	$	—	$	210		$	248
Interest cost	4,643			5,884			147		112		591			563
Expected return on plan assets	(7,980		)	(9,747		)	—		—		—			—
Amortization of prior service credit	—			—			—		—		(142		)	(142		)
Pension settlement expense	5,405			1,834			—		—		—			—
Amortization of net actuarial loss	1,729			6,388			170		195		69			401
Net periodic benefit cost	$	3,797		$	9,093		$	317	$	307	$	728		$	1,070

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

	Nonunion Defined
	Benefit Pension Plan
	(in thousands)
Change in projected benefit obligation
Projected benefit obligation at December 31, 2013	$	211,660
Interest cost	4,643
Actuarial loss(1)	10,413
Benefits paid(2)	(54,593		)
Projected benefit obligation at September 30, 2014	172,123
Change in plan assets
Fair value of plan assets at December 31, 2013	207,613
Actual return on plan assets	5,182
Benefits paid(2)	(54,593		)
Fair value of plan assets at September 30, 2014	158,202
Funded status at September 30, 2014(3)	$	(13,921	)
Accumulated benefit obligation	$	172,123

(1) Net actuarial loss from remeasurement upon settlements was primarily impacted by changes in the discount rate at each remeasurement date. The discount rate used to remeasure the PBO upon settlement at the September 30, 2014 measurement date was 3.4%, compared to 3.8% at the December 31, 2013 measurement date.

(2) Includes purchase of nonparticipating annuity contract, lump-sum distributions, and periodic payments made by the plan during the nine months ended September 30, 2014.

(3) Noncurrent liability recognized within pension and postretirement liabilities in the accompanying consolidated balance sheet at September 30, 2014.