Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Weighted Average Discount Rate [Line Items]

Schedule of Allocation of Plan Assets [Table Text Block]

The following information discloses the fair values of our Pension Plans' assets, by asset category, for the periods indicated (in thousands):

	December 31, 2017								December 31, 2016
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	538	$	—	$	—	$	538	$	—	$	—	$	—	$	—
Mutual funds	16,671		—		—		16,671		—		—		—		—
Pooled mutual funds	—		25,889		—		25,889		—		22,961		—		22,961
Total	$	17,209	$	25,889	$	—	$	43,098	$	—	$	22,961	$	—	$	22,961

Projected benefit obligations and plan assets of the pension plans

The table below summarizes the balances of the projected benefit obligation and fair value of the plan assets at December 31, 2017 and 2016 (in thousands):

	December 31,
	2017			2016
Projected benefit obligation	$	53,489		$	25,675
Fair value of plan assets	43,098			22,961
Funded status:	$	(10,391	)	$	(2,714	)