EMPLOYEE BENEFIT PLANS (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2015

Dec. 31, 2014

EMPLOYEE BENEFIT PLANS

Net periodic benefit cost recognized for the plans

	Pension Benefits						Other Benefits
(In thousands)	March 31, 2015			March 31, 2014			March 31, 2015			March 31, 2014
Components of net periodic benefit cost:
Service cost	$	—		$	—		$	2		$	9
Interest cost		1,069			1,152			7			53
Expected return on plan assets		(1,166	)		(1,307	)		—			—
Amortization of net (gain) loss		11			(259	)		(2,797	)		(87	)
Amortization of prior service credit		—			—			(2,888	)		(416	)
Curtailment gain		—			—			(11,867	)		—
Settlement (gain) loss		287			—			(575	)		—
Net periodic benefit cost (credit)	$	201		$	(414	)	$	(18,118	)	$	(441	)

	Pension Benefits												Other Benefits
(In thousands)	12 Months Ended December 31, 2014			12 Months Ended December 31, 2013			From Inception August 31, 2012 through December 31, 2012			March 30, 2012 through August 30, 2012			12 Months Ended December 31, 2014			12 Months Ended December 31, 2013			From Inception August 31, 2012 through December 31, 2012		March 30, 2012 through August 30, 2012
	(Successor)			(Successor)			(Successor)			(Predecessor)			(Successor)			(Successor)			(Successor)		(Predecessor)
Components of net periodic benefit cost:
Service cost	$	—		$	180		$	59		$	76		$	36		$	195		$	61	$	74
Interest cost		4,609			4,513			1,484			1,962			214			870			306		435
Expected return on plan assets		(5,230	)		(4,707	)		(1,442	)		(1,811	)		—			—			—		—
Amortization of net (gain) loss		(1,034	)		—			—			899			(348	)		(78	)		—		88
Amortization of prior service credit		—			—			—			—			(1,665	)		—			—		(448	)
Settlement		—			—			(15	)		—			—			—			—		—
Net periodic benefit cost (credit)	$	(1,655	)	$	(14	)	$	86		$	1,126		$	(1,763	)	$	987		$	367	$	149