Equity and Noncontrolling Interest (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

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

								Unrealized
		Currency		Defined		Change in		gain (loss) in
		translation		benefit		fair value of		available-for-
		adjustments		pension plans		derivatives		sale securities		Total
Balance at December 31, 2011		$	4,709	$	(34,260)	$	(272)	$	856	$	(28,967)
	Other comprehensive (loss) income before reclassifications		(1,373)		(20,045)		26		2,181		(19,211)
	Amounts reclassified from AOCI		0		2,875		392		(868)		2,399
	Related tax amounts		0		4,516		(146)		(446)		3,924
Balance at December 31, 2012			3,336		(46,914)		0		1,723		(41,855)
	Other comprehensive (loss) income before reclassifications		(2,184)		9,876		0		2,543		10,235
	Amounts reclassified from AOCI		0		4,177		0		(2,758)		1,419
	Related tax amounts		0		(4,572)		0		73		(4,499)
Balance at December 31, 2013			1,152		(37,433)		0		1,581		(34,700)
	Other comprehensive (loss) income before reclassifications		(15,464)		(9,232)		0		2,057		(22,639)
	Amounts reclassified from AOCI		0		3,043		0		(2,245)		798
	Related tax amounts		0		2,071		0		64		2,135
Balance at December 31, 2014		$	(14,312)	$	(41,551)	$	0	$	1,457	$	(54,406)