Employee Retirement and Postretirement Benefits

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Employee Retirement and Postretirement Benefits

Employee Retirement and Postretirement Benefits

We sponsor various defined benefit and defined contribution retirement plans, including various employee savings and profit sharing plans, and contribute to various multiemployer pension plans on behalf of our employees. All full-time union and non-union employees who have met requirements pursuant to the plans are eligible to participate in one or more of these plans.

Defined Benefit Plans — The benefits under our defined benefit plans are based on years of service and employee compensation. The following table sets forth the components of net periodic benefit cost for our defined benefit plans during the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30						Nine Months Ended September 30
	2016			2015			2016			2015
	(In thousands)
Components of net periodic benefit cost:
Service cost	$	793		$	908		$	2,379		$	2,724
Interest cost	3,043			3,434			9,129			10,302
Expected return on plan assets	(4,633		)	(4,938		)	(13,899		)	(14,814		)
Amortizations:
Prior service cost	214			214			642			642
Unrecognized net loss	2,206			2,136			6,618			6,408
Net periodic benefit cost	$	1,623		$	1,754		$	4,869		$	5,262

Postretirement Benefits — Certain of our subsidiaries provide health care benefits to certain retirees who are covered under specific group contracts. The following table sets forth the components of net periodic benefit cost for our postretirement benefit plans during the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30					Nine Months Ended September 30
	2016			2015		2016			2015
	(In thousands)
Components of net periodic benefit cost:
Service cost	$	160		$	205	$	480		$	615
Interest cost	271			364		813			1,092
Amortizations:
Prior service cost	23			23		69			69
Unrecognized net loss (gain)	(61		)	16		(183		)	48
Net periodic benefit cost	$	393		$	608	$	1,179		$	1,824