EMPLOYEE BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2016

Pension and Other Postretirement Benefit Expense [Abstract]

Components of the Net Periodic Benefit Cost

Components of the net periodic benefit cost for the three and nine months ended September 30, 2016 (Successor Company), the three months ended September 30, 2015 (Successor Company), the period of February 1, 2015 to September 30, 2015 (Successor Company), and the period of January 1, 2015 to January 31, 2015 (Predecessor Company), are as follows: 

	Successor Company																				Predecessor Company
	For The Three Months Ended September 30, 2016					For The Three Months Ended September 30, 2015					For The Nine Months Ended September 30, 2016					February 1, 2015 to September 30, 2015					January 1, 2015 to January 31, 2015
	Defined Benefit Pension Plan			Excess Benefit Plan		Defined Benefit Pension Plan			Excess Benefit Plan		Defined Benefit Pension Plan			Excess Benefit Plan		Defined Benefit Pension Plan			Excess Benefit Plan		Defined Benefit Pension Plan			Excess Benefit Plan
	(Dollars In Thousands)																				(Dollars In Thousands)
Service cost — benefits earned during the period	$	2,906		$	311	$	2,973		$	333	$	8,717		$	1,102	$	7,928		$	888	$	974		$	95
Interest cost on projected benefit obligation	2,737			299		2,433			408		8,210			1,054		6,488			1,088		1,002			140
Expected return on plan assets	(3,605		)	—		(3,642		)	—		(10,816		)	—		(9,712		)	—		(1,293		)	—
Amortization of prior service cost	—			—		—			—		—			—		—			—		(33		)	1
Amortization of actuarial losses	—			64		—			—		—			114		—			—		668			138
Preliminary net periodic benefit cost	2,038			674		1,764			741		6,111			2,270		4,704			1,976		1,318			374
Settlement/curtailment expense	—			635		—			—		—			2,135		—			—		—			—
Total net periodic benefit costs	$	2,038		$	1,309	$	1,764		$	741	$	6,111		$	4,405	$	4,704		$	1,976	$	1,318		$	374