Equity (Tables)

12 Months Ended

Dec. 31, 2015

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Amounts recognized, net of tax, in Accumulated other comprehensive income (loss) for the years ended December 31, 2015 and 2014 consist of (in thousands):

	2015			2014
Prior service cost	$	661		$	718
Transition asset	—			65
Unrecognized net actuarial loss and foreign exchange	(10,201		)	(11,595		)
Fair value of derivatives, net of tax	(998		)	(1,082		)
Total Accumulated other comprehensive loss, net of tax	$	(10,538	)	$	(11,894	)