Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Components of benefit expense

The components of the expense consisted of the following:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
(in thousands)	2016			2015			2016			2015
Interest cost	$	6,839		$	8,169		$	20,379		$	22,797
Expected return on plan assets, net of expenses	(4,616		)	(6,625		)	(13,812		)	(18,334		)
Amortization of actuarial loss	1,102			1,179			3,097			3,515
Curtailment	—			—			—			1,080
Total for defined benefit plans	3,325			2,723			9,664			9,058
Multi-employer plans	42			43			127			140
SERPs	280			253			840			800
Defined contribution plans	2,073			2,094			6,347			7,805
Net periodic benefit cost	5,720			5,113			16,978			17,803
Allocated to discontinued operations	—			—			—			(1,096		)
Net periodic benefit cost — continuing operations	$	5,720		$	5,113		$	16,978		$	16,707