EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of benefit obligation, fair value of plan assets and the funded status of the Company's defined benefit pension plan and unfunded excess benefit plan

The following table presents the benefit obligation, fair value of plan assets, funded status, and amounts not yet recognized as components of net periodic pension costs for the Company's defined benefit pension plan and unfunded excess benefit plan as of December 31, 2016 and 2015 (Successor Company) and January 31, 2015 (Predecessor Company):



	Successor Company												Predecessor Company
	December 31, 2016						December 31, 2015						January 31, 2015
	Defined Benefit Pension Plan			Unfunded Excess Benefit Plan			Defined Benefit Pension Plan			Unfunded Excess Benefit Plan			Defined Benefit Pension Plan			Unfunded Excess Benefit Plan
	(Dollars In Thousands)												(Dollars In Thousands)
Accumulated benefit obligation, end of year	$	247,595		$	45,594		$	250,133		$	54,196		$	262,290		$	49,251
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	268,221		$	56,985		$	281,099		$	51,243		$	267,331		$	49,575
Service cost	12,791			1,413			11,220			1,229			974			95
Interest cost	9,751			1,353			9,072			1,499			1,002			140
Amendments	—			—			—			—			—			—
Actuarial loss/(gain)	5,988			4,124			(19,235		)	4,484			12,384			1,555
Benefits paid	(30,903		)	(16,073		)	(13,935		)	(1,470		)	(592		)	(122		)
Projected benefit obligation at end of year	265,848			47,802			268,221			56,985			281,099			51,243
Change in plan assets:
Fair value of plan assets at beginning of year	196,042			—			201,820			—			203,772			—
Actual return on plan assets	15,815			—			6,751			—			(3,525		)	—
Employer contributions⁽¹⁾	20,889			16,073			1,406			1,470			2,165			122
Benefits paid⁽²⁾	(30,903		)	(16,073		)	(13,935		)	(1,470		)	(592		)	(122		)
Fair value of plan assets at end of year	201,843			—			196,042			—			201,820			—
After reflecting FASB guidance:
Funded status	(64,005		)	(47,802		)	(72,179		)	(56,985		)	(79,279		)	(51,243		)
Amounts recognized in the balance sheet:
Other liabilities	(64,005		)	(47,802		)	(72,179		)	(56,985		)	(79,279		)	(51,243		)
Amounts recognized in accumulated other comprehensive income:
Net actuarial loss/(gain)	(7,855		)	6,294			(12,772		)	4,484			96,965			22,401
Prior service cost/(credit)	—			—			—			—			(1,001		)	23
Total amounts recognized in AOCI	$	(7,855	)	$	6,294		$	(12,772	)	$	4,484		$	95,964		$	22,424


(1)	Employer contributions disclosed are based on the Company's fiscal filing year


(2)	Includes amount related to Mr. Johns' excess benefit to deferred compensation plan conversion as discussed above in Unfunded Excess Benefit Plan

Schedule of weighted-average assumptions used to determine benefit obligations

Weighted-average assumptions used to determine benefit obligations as of December 31 are as follows:



	Successor Company
	Defined Benefit Pension Plan				Unfunded Excess Benefit Plan
	2016		2015		2016		2015
Discount rate	4.04	%	4.29	%	3.60	%	3.63	%
Rate of compensation increase	4.75% prior to age 40/ 3.75% for age 40 and above		4.75% prior to age 40/ 3.75% for age 40 and above		4.75% prior to age 40/ 3.75% for age 40 and above		4.75% prior to age 40/ 3.75% for age 40 and above

The benefit obligations as of January 31 were determined based on the assumptions used in the 2014 year end disclosures with the following exception:



	Predecessor Company
	Defined Benefit Pension Plan		Unfunded Excess Benefit Plan
Discount rate	3.55	%	3.26	%

Schedule of weighted-average assumptions used to determine the net periodic benefit cost

Weighted-average assumptions used to determine the net periodic benefit cost for the year ended December 31, 2016 (Successor Company), for the period of February 1, 2015 to December 31, 2015 (Successor Company), and for the years ended 2014 (Predecessor Company) are as follows:



	Successor Company								Predecessor Company
	For The Year Ended December 31,								For The Year Ended December 31,
	2016		2015		2016		2015		2014		2014
	Defined Benefit Pension Plan				Unfunded Excess Benefit Plan				Defined Benefit Pension Plan		Unfunded Excess Benefit Plan
Discount rate	4.29	%	3.95	%	3.63	%	3.65	%	4.86	%	4.30	%
Rate of compensation increase	4.75% prior to age 40/ 3.75% for age 40 and above		4.75% prior to age 40/ 3.75% for age 40 and above		4.75% prior to age 40/ 3.75% for age 40 and above		4.75% prior to age 40/ 3.75% for age 40 and above		3.0		4.0
Expected long-term return on plan assets	7.25	%	7.50	%	N/A		N/A		7.50	%	N/A

Components of the net periodic benefit cost of the Company's defined benefit pension plan and unfunded excess benefit plan

Components of the net periodic benefit cost for the year ended December 31, 2016 (Successor Company), for the period of the period of February 1, 2015 to December 31, 2015 (Successor Company), for the period of January 1, 2015 to January 31, 2015 (Predecessor Company), and for the year ended and December 31, 2014 (Predecessor Company) are as follows:



	Successor Company										Predecessor Company
	For The Year Ended December 31,					February 1, 2015 to December 31, 2015					January 1, 2015 to January 31, 2015					For The Year Ended December 31,
	2016			2016		February 1, 2015 to December 31, 2015					January 1, 2015 to January 31, 2015					2014			2014
	Defined Benefit Pension Plan			Unfunded Excess Benefit Plan		Defined Benefit Pension Plan			Unfunded Excess Benefit Plan		Defined Benefit Pension Plan			Unfunded Excess Benefit Plan		Defined Benefit Pension Plan			Unfunded Excess Benefit Plan
	(Dollars In Thousands)										(Dollars In Thousands)
Service cost—benefits earned during the period	$	12,791		$	1,413	$	11,220		$	1,229	$	974		$	95	$	9,411		$	954
Interest cost on projected benefit obligation	9,751			1,353		9,072			1,499		1,002			140		10,493			1,696
Expected return on plan assets	(13,780		)	—		(13,214		)	—		(1,293		)	—		(12,166		)	—
Amortization of prior service cost/(credit)	—			—		—			—		(33		)	1		(392		)	12
Amortization of actuarial loss/(gain)⁽¹⁾	—			178		—			—		668			138		6,821			1,516
Preliminary net periodic benefit cost	8,762			2,944		7,078			2,728		1,318			374		14,167			4,178
Settlement/curtailment expense⁽²⁾	(964		)	2,135		—			—		—			—		—			—
Total net periodic benefit cost	$	7,798		$	5,079	$	7,078		$	2,728	$	1,318		$	374	$	14,167		$	4,178


(1)	2016 average remaining service period used is 9.31 years years and 8.58/8.63 years for the defined benefit pension plan and unfunded excess benefit plan, respectively.


(2)	The unfunded excess benefit plan triggered settlement accounting for the year ended December 31, 2016 since the total lump sum payments exceeded the settlement threshold of service cost plus interest cost.

Schedule of estimated future benefit payments under defined benefit pension plan

Estimated future benefit payments under the defined benefit pension plan and unfunded excess benefit plan are as follows:



Years	Defined Benefit Pension Plan		Unfunded Excess Benefit Plan
	(Dollars In Thousands)
2017	$	18,410	$	3,014
2018	18,050		3,245
2019	19,112		6,364
2020	19,434		5,290
2021	19,990		4,873
2022 - 2026	106,672		21,890

Schedule of allocation of plan assets by category

Allocation of plan assets of the defined benefit pension plan by category as of December 31 are as follows:



	Successor Company
Asset Category	Target Allocation for 2017		2016		2015
Cash and cash equivalents	2	%	2	%	2	%
Equity securities	60		61		61
Fixed income	38		37		37
Total	100	%	100	%	100	%

Schedule of fair value of plan assets by category

Plan assets of the defined benefit pension plan by category as of December 31, 2016 (Successor Company) and December 31, 2015 (Successor Company), are as follows:



	Successor Company
	As of December 31,
	2016		2015
	(Dollars In Thousands)
Asset Category
Cash and cash equivalents	$	4,175	$	3,121
Equity securities:
Collective Russell 3000 equity index fund	67,627		72,663
Fidelity Spartan 500 index fund	58,815		52,551
Fixed income	71,226		67,707
Total investments	201,843		196,042
Employer contribution receivable	—		—
Total	$	201,843	$	196,042

Schedule of fair value of plan assets, set forth by level, within the fair value hierarchy

The following table sets forth by level, within the fair value hierarchy, the Plan's assets at fair value as of December 31, 2016 (Successor Company):



	Level 1		Level 2		Level 3		Total
	(Dollars In Thousands)
Collective short-term investment fund	$	4,175	$	—	$	—	$	4,175
Collective investment funds:
Equity index funds	58,815		67,627		—		126,442
Group deposit administration annuity contract	—		—		71,226		71,226
Total investments	$	62,990	$	67,627	$	71,226	$	201,843

The following table sets forth by level, within the fair value hierarchy, the Plan's assets at fair value as of December 31, 2015 (Successor Company):



	Level 1		Level 2		Level 3		Total
	(Dollars In Thousands)
Collective short-term investment fund	$	3,121	$	—	$	—	$	3,121
Collective investment funds:
Equity index funds	52,551		72,663		—		125,214
Group deposit administration annuity contract	—		—		67,707		67,707
Total investments	$	55,672	$	72,663	$	67,707	$	196,042

Summary of plan investments measured at a fair value based on NAV per share

The following table summarizes the Plan investments measured at fair value based on NAV per share as of December 31, 2016 (Successor Company) and December 31, 2015 (Successor Company), respectively:



Name	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
	(Dollars In Thousands)
Successor Company
As of December 31, 2016:
Collective short-term investment fund	$	4,175	Not Applicable	Daily	1 day
Collective Russell 3000 index fund⁽¹⁾	67,627		Not Applicable	Daily	1 day
Fidelity Spartan 500 index fund	58,815		Not Applicable	Daily	1 day
As of December 31, 2015:
Collective short-term investment fund	$	3,121	Not Applicable	Daily	1 day
Collective Russell 3000 index fund⁽¹⁾	72,663		Not Applicable	Daily	1 day
Fidelity Spartan 500 index fund	52,551		Not Applicable	Daily	1 day


(1)	Non-lending collective trust that does not publish a daily NAV but tracks the Russell 3000 index and provides a daily NAV to the Plan.

Reconciliation of the beginning and ending balances for fair value measurements for which significant unobservable inputs (level 3) have been used

The following table presents a reconciliation of the beginning and ending balances for the fair value measurements for the year ended December 31, 2016, for the period of February 1, 2105 to December 31, 2015, and for the period of January 1, 2015 to January 31, 2015, for which the Company has used significant unobservable inputs (Level 3):



	Successor Company				Predecessor Company
	December 31, 2016		December 31, 2015		January 31, 2015
	(Dollars In Thousands)				(Dollars In Thousands)
Balance, beginning of year	$	67,707	$	64,581	$	64,296
Interest income	3,519		3,126		285
Transfers from collective short-term investments fund	—		—		—
Transfers to collective short-term investments fund	—		—		—
Balance, end of year	$	71,226	$	67,707	$	64,581

Schedule of Plan's Level 3 financial instrument, the valuation technique used, and the significant unobservable input and the ranges of values for that input

The following table represents the Plan's Level 3 financial instrument, the valuation technique used, and the significant unobservable input and the ranges of values for that input as of December 31, 2016 (Successor Company):



Instrument	Fair Value		Principal Valuation Technique	Significant Unobservable Inputs	Range of Significant Input Values
	(Dollars In Thousands)
Group deposit administration annuity contract	$	71,226	Contract Value	Contract Rate	5.11% - 5.35%

Retiree medical plan

EMPLOYEE BENEFIT PLANS

Schedule of accumulated postretirement benefit obligation

The change in the benefit obligation for the retiree medical plan is as follows:



	Successor Company
	As of December 31,
	2016			2015
	(Dollars In Thousands)
Change in Benefit Obligation
Benefit obligation, beginning of year	$	137		$	247
Service cost	—			1
Interest cost	1			2
Actuarial (gain)/loss	(22		)	(113		)
Plan participant contributions	87			141
Benefits paid	(142		)	(141		)
Benefit obligation, end of year	$	61		$	137

Group life insurance plan