Pension Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Components of the net periodic benefit cost for both the Qualified and the Nonqualified Pension Plan

The following table presents the components of the net periodic benefit cost for the Pension Plans:

	For the Three Months Ended March 31,
	2016			2015
	(in thousands)
Service cost	$	1,987		$	1,584
Interest cost	624			548
Expected return on plan assets that reduces periodic pension cost	(545		)	(494		)
Amortization of prior service cost	4			4
Amortization of net actuarial loss	372			172
Net periodic benefit cost	$	2,442		$	1,814