Equity and Noncontrolling Interest (Tables)

3 Months Ended

Mar. 31, 2014

Stockholders Equity [Abstract]

Schedule of Stockholders Equity [Table Text Block]

								Accumulated
				Capital in				Other
		Common		excess of		Retained		Comprehensive		Noncontrolling
		stock		par value		earnings		Loss		interest		Total
Balance at December 31, 2013		$	13,196	$	99,038	$	258,285	$	(34,700)	$	8,877	$	344,696
	Net income		0		0		12,730		0		579		13,309
	Amounts reported in other comprehensive income		0		0		0		1,685		204		1,889
	Dividends ($0.25 per share)		0		0		(3,308)		0		0		(3,308)
	Share issuance and equity-based compensation plans		31		1,152		0		0		0		1,183
	Excess tax benefit from stock option exercises		0		239		0		0		0		239
Balance at March 31, 2014		$	13,227	$	100,429	$	267,707	$	(33,015)	$	9,660	$	358,008
Balance at December 31, 2012		$	13,095	$	94,470	$	215,390	$	(41,855)	$	8,576	$	289,676
	Net income		0		0		13,619		0		572		14,191
	Amounts reported in other comprehensive income (loss)		0		0		0		108		(133)		(25)
	Dividends ($0.245 per share)		0		0		(3,219)		0		0		(3,219)
	Share issuance and equity-based compensation plans		45		936		0		0		0		981
	Excess tax benefit from stock option exercises		0		369		0		0		0		369
Balance at March 31, 2013		$	13,140	$	95,775	$	225,790	$	(41,747)	$	9,015	$	301,973

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

						Unrealized
		Currency		Defined		gain (loss) in
		translation		benefit		available-for-
		adjustments		pension plans		sale securities		Total
Balance at December 31, 2013		$	1,152	$	(37,433)	$	1,581	$	(34,700)
	Other comprehensive income before reclassifications		1,070		25		663		1,758
	Amounts reclassified from AOCI		0		769		(558)		211
	Current period other comprehensive income		1,070		794		105		1,969
	Related tax amounts		0		(248)		(36)		(284)
	Net current period other comprehensive income		1,070		546		69		1,685
Balance at March 31, 2014		$	2,222	$	(36,887)	$	1,650	$	(33,015)
Balance at December 31, 2012		$	3,336	$	(46,914)	$	1,723	$	(41,855)
	Other comprehensive (loss) income before reclassifications		(1,630)		762		1,148		280
	Amounts reclassified from AOCI		0		1,056		(494)		562
	Current period other comprehensive (loss) income		(1,630)		1,818		654		842
	Related tax amounts		0		(512)		(222)		(734)
	Net current period other comprehensive (loss) income		(1,630)		1,306		432		108
Balance at March 31, 2013		$	1,706	$	(45,608)	$	2,155	$	(41,747)