Equity and Noncontrolling Interest (Tables)

3 Months Ended

Mar. 31, 2015

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, 2014			$	13,301	$	99,056	$	299,524	$	(54,406)	$	7,660	$	365,135
	Net income			—		—		10,378		—		229		10,607
	Amounts reported in other comprehensive
		(loss) income		—		—		—		(8,565)		30		(8,535)
	Dividends ($0.30 per share)			—		—		(4,000)		—		—		(4,000)
	Share issuance and equity-based compensation
		plans		31		1,604		—		—		—		1,635
	Excess tax benefit from stock option exercises			—		287		—		—		—		287
Balance at March 31, 2015			$	13,332	$	100,947	$	305,902	$	(62,971)	$	7,919	$	365,129
Balance at December 31, 2013			$	13,196	$	99,038	$	258,285	$	(34,700)	$	8,877	$	344,696
	Net income			—		—		12,730		—		579		13,309
	Amounts reported in other comprehensive
		income		—		—		—		1,685		204		1,889
	Dividends ($0.25 per share)			—		—		(3,308)		—		—		(3,308)
	Share issuance and equity-based compensation
		plans		31		1,152		—		—		—		1,183
	Excess tax benefit from stock option exercises			—		239		—		—		—		239
Balance at March 31, 2014			$	13,227	$	100,429	$	267,707	$	(33,015)	$	9,660	$	358,008

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, 2014			$	(14,312)	$	(41,551)	$	1,457	$	(54,406)
	Other comprehensive (loss) income before
		reclassifications		(11,113)		2,498		270		(8,345)
	Amounts reclassified from AOCI			—		881		(164)		717
	Current period other comprehensive (loss) income			(11,113)		3,379		106		(7,628)
	Related tax amounts			—		(901)		(36)		(937)
	Net current period other comprehensive (loss) income			(11,113)		2,478		70		(8,565)
Balance at March 31, 2015			$	(25,425)	$	(39,073)	$	1,527	$	(62,971)
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			—		769		(558)		211
	Current period other comprehensive income			1,070		794		105		1,969
	Related tax amounts			—		(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)