Equity and Noncontrolling Interest (Tables)

9 Months Ended

Sep. 30, 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 June 30, 2015			$	13,337	$	103,082	$	315,060	$	(60,771)	$	7,818	$	378,526
	Net income			—		—		14,371		—		464		14,835
	Amounts reported in other comprehensive
		loss		—		—		—		(10,994)		(367)		(11,361)
	Repurchases of common stock			(40)		—		(3,319)		—		—		(3,359)
	Dividends ($0.32 per share)			—		—		(4,256)		—		—		(4,256)
	Share issuance and equity-based compensation
		plans		9		1,735		—		—		—		1,744
	Excess tax benefit from stock option exercises			—		22		—		—		—		22
Balance at September 30, 2015			$	13,306	$	104,839	$	321,856	$	(71,765)	$	7,915	$	376,151
Balance at June 30, 2014			$	13,242	$	95,508	$	279,161	$	(31,587)	$	8,386	$	364,710
	Net income			—		—		15,696		—		423		16,119
	Amounts reported in other comprehensive
		loss		—		—		—		(9,826)		(246)		(10,072)
	Dividends ($0.30 per share)			—		—		(3,981)		—		—		(3,981)
	Distributions to noncontrolling affiliate
		shareholders		—		—		—		—		(1,149)		(1,149)
	Acquisition of noncontrolling interest			—		7		—		—		148		155
	Share issuance and equity-based compensation
		plans		27		1,039		—		—		—		1,066
	Excess tax benefit from stock option exercises			—		163		—		—		—		163
Balance at September 30, 2014			$	13,269	$	96,717	$	290,876	$	(41,413)	$	7,562	$	367,011

									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			—		—		39,787		—		1,067		40,854
	Amounts reported in other comprehensive
		loss		—		—		—		(17,359)		(461)		(17,820)
	Repurchases of common stock			(59)		—		(4,930)		—		—		(4,989)
	Dividends ($0.94 per share)			—		—		(12,525)		—		—		(12,525)
	Disposition of noncontrolling interest			—		—		—		—		(351)		(351)
	Share issuance and equity-based compensation
		plans		64		5,383		—		—		—		5,447
	Excess tax benefit from stock option exercises			—		400		—		—		—		400
Balance at September 30, 2015			$	13,306	$	104,839	$	321,856	$	(71,765)	$	7,915	$	376,151
Balance at December 31, 2013			$	13,196	$	99,038	$	258,285	$	(34,700)	$	8,877	$	344,696
	Net income			—		—		43,853		—		1,517		45,370
	Amounts reported in other comprehensive
		loss		—		—		—		(6,713)		(47)		(6,760)
	Dividends ($0.85 per share)			—		—		(11,262)		—		—		(11,262)
	Distributions to noncontrolling affiliate
		shareholders		—		—		—		—		(1,806)		(1,806)
	Acquisition of noncontrolling interest			—		(6,443)		—		—		(979)		(7,422)
	Share issuance and equity-based compensation
		plans		73		3,692		—		—		—		3,765
	Excess tax benefit from stock option exercises			—		430		—		—		—		430
Balance at September 30, 2014			$	13,269	$	96,717	$	290,876	$	(41,413)	$	7,562	$	367,011

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 June 30, 2015			$	(22,833)	$	(39,124)	$	1,186	$	(60,771)
	Other comprehensive (loss) income before
		reclassifications		(11,013)		170		(861)		(11,704)
	Amounts reclassified from AOCI			—		849		(179)		670
	Current period other comprehensive (loss) income			(11,013)		1,019		(1,040)		(11,034)
	Related tax amounts			—		(313)		353		40
	Net current period other comprehensive (loss) income			(11,013)		706		(687)		(10,994)
Balance at September 30, 2015			$	(33,846)	$	(38,418)	$	499	$	(71,765)
Balance at June 30, 2014			$	3,208	$	(36,274)	$	1,479	$	(31,587)
	Other comprehensive (loss) income before
		reclassifications		(11,409)		1,698		(24)		(9,735)
	Amounts reclassified from AOCI			—		759		(300)		459
	Current period other comprehensive (loss) income			(11,409)		2,457		(324)		(9,276)
	Related tax amounts			—		(660)		110		(550)
	Net current period other comprehensive (loss) income			(11,409)		1,797		(214)		(9,826)
Balance at September 30, 2014			$	(8,201)	$	(34,477)	$	1,265	$	(41,413)

							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		(19,534)		1,821		(956)		(18,669)
	Amounts reclassified from AOCI			—		2,608		(495)		2,113
	Current period other comprehensive (loss) income			(19,534)		4,429		(1,451)		(16,556)
	Related tax amounts			—		(1,296)		493		(803)
	Net current period other comprehensive (loss) income			(19,534)		3,133		(958)		(17,359)
Balance at September 30, 2015			$	(33,846)	$	(38,418)	$	499	$	(71,765)
Balance at December 31, 2013			$	1,152	$	(37,433)	$	1,581	$	(34,700)
	Other comprehensive (loss) income before
		reclassifications		(9,353)		1,842		1,481		(6,030)
	Amounts reclassified from AOCI			—		2,290		(1,959)		331
	Current period other comprehensive (loss) income			(9,353)		4,132		(478)		(5,699)
	Related tax amounts			—		(1,176)		162		(1,014)
	Net current period other comprehensive (loss) income			(9,353)		2,956		(316)		(6,713)
Balance at September 30, 2014			$	(8,201)	$	(34,477)	$	1,265	$	(41,413)