Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Pension and Other Postretirement Benefit Expense [Abstract]

Pension Benefit Costs

The following table details the components of pension benefit costs:

	Successor			Predecessor
	Three Months Ended March 31, 2017			Three Months Ended March 31, 2016
(In thousands)
Interest cost	2,991			3,338
Expected return on plan assets	(4,497		)	(4,538		)
Amortization of other actuarial losses	—			757
Net benefit credit	$	(1,506	)	$	(443	)

The following table details the components of other postretirement benefit costs (credits):

	Successor		Predecessor
	Three Months Ended March 31, 2017		Three Months Ended March 31, 2016
(In thousands)
Service cost	$	170	$	160
Interest cost	1,058		1,134
Amortization of prior service credits	—		(2,673		)
Amortization of other actuarial losses (gains)	—		(566		)
Net benefit cost (credit)	$	1,228	$	(1,945	)