Restructuring (Tables)

6 Months Ended

Jun. 30, 2017

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following table presents a summary of the restructuring activity for the three and six months ended June 30, 2017 and 2016:

	Severance Charges			Total
	(In thousands)
Accrued charges at December 31, 2016	$	1,977		$	1,977
Costs paid	(618		)	(618		)
Accrued charges at March 31, 2017	1,359			1,359
Costs paid	(335		)	(335		)
Accrued charges at June 30, 2017	$	1,024		$	1,024
Accrued charges at December 31, 2015	$	3,305		$	3,305
Costs incurred	1,112			1,112
Costs paid	(849		)	(849		)
Accrued charges at March 31, 2016	3,568			3,568
Costs incurred	905			905
Costs paid	(1,214		)	(1,214		)
Accrued charges at June 30, 2016	$	3,259		$	3,259