Note 6 - Retirement Plans

6 Months Ended

Jun. 30, 2018

Notes to Financial Statements

Pension and Other Postretirement Benefits Disclosure [Text Block]

6

.     

Retirement

Plans

The following table provides the components of net periodic benefit cost or income for our defined benefit pension plans for the

three

-month and

six

-month periods ended

June 30, 2018

and

2017

(in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Interest cost	$	1,106		$	1,528		$	2,212		$	2,335
Expected return on plan assets		(1,536	)		(1,848	)		(3,072	)		(2,824	)
Loss amortization		169			158			339			242
Net periodic income, net	$	(261	)	$	(162	)	$	(521	)	$	(247	)

During the

six

-month period ended

June 30, 2018,

we did

not

make any contribution to our defined benefit pension plans. During the remainder of

2018,

we expect to contribute

$2.0

million to these plans.

During the

three

and

six

-month periods ended

June 30, 2018,

we contributed

$1.6

million and

$3.5

million, respectively, in matching contributions to our

401

(k) Plan. During the remainder of

2018,

we estimate that our contributions will be approximately

$3.2

million to this plan, excluding discretionary profit-sharing contributions.