Employee Retirement and Postretirement Benefits

9 Months Ended

Sep. 30, 2015

Compensation and Retirement Disclosure [Abstract]

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, 2015 and 2014:



	Three Months Ended September 30						Nine Months Ended September 30
	2015			2014			2015			2014
	(In thousands)
Components of net periodic benefit cost:
Service cost	$	908		$	770		$	2,724		$	2,310
Interest cost	3,434			3,495			10,302			10,485
Expected return on plan assets	(4,938		)	(4,690		)	(14,814		)	(14,070		)
Amortizations:
Prior service cost	214			197			642			591
Unrecognized net loss	2,136			1,276			6,408			3,828
Net periodic benefit cost	$	1,754		$	1,048		$	5,262		$	3,144

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, 2015 and 2014:



	Three Months Ended September 30				Nine Months Ended September 30
	2015		2014		2015		2014
	(In thousands)
Components of net periodic benefit cost:
Service cost	$	205	$	206	$	615	$	618
Interest cost	364		416		1,092		1,248
Amortizations:
Prior service cost	23		16		69		48
Unrecognized net loss	16		19		48		57
Net periodic benefit cost	$	608	$	657	$	1,824	$	1,971