Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2011

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity [Table Text Block]

An analysis of shareholders’ equity for each of the three years ended December 31, 2011 is shown below. The impact of the August 2011 three-for-two stock split is reflected for all periods presented. See Note 9 — Earnings per Common Share for additional information.

	Common Shares					Retained Earnings			Accumulated Other Comprehensive Income/(Loss)			Shareholders’ Equity
	Shares		Amount
Balance, December 31, 2008	118,221,646		$	527,302		$	509,931		$	(98,296	)	$	938,937
Net income	—		—			312,541			—			312,541
Dividends ($1.33 per share)	—		—			(158,486		)	—			(158,486		)
Issuance of shares under incentive stock plans	1,165,358		11,115			—			—			11,115
Equity portion of convertible debt (Note 11)	—		8,850			—			—			8,850
Warrants and hedge, net (Note 11)	—		(2,391		)	—			—			(2,391		)
Stock-based compensation	—		15,754			—			—			15,754
Excess tax benefit on stock-based compensation	—		2,720			—			—			2,720
Repurchase of common shares	(74,043	)	(1,388		)	—			—			(1,388		)
Net gain from pension and postretirement plans	—		—			—			4,879			4,879
Foreign currency translation adjustment	—		—			—			15,980			15,980
Joint venture cash flow hedges	—		—			—			(2,305		)	(2,305		)
Balance, December 31, 2009	119,312,961		$	561,962		$	663,986		$	(79,742	)	$	1,146,206
Net income	—		—			217,586			—			217,586
Dividends ($1.36 per share)	—		—			(164,514		)	—			(164,514		)
Issuance of shares under incentive stock plans	1,914,341		26,314			—			—			26,314
Stock-based compensation	—		15,223			—			—			15,223
Excess tax benefit on stock-based compensation	—		5,411			—			—			5,411
Repurchase of common shares	(204,162	)	(6,028		)	—			—			(6,028		)
Net gain from pension and postretirement plans	—		—			—			6,385			6,385
Foreign currency translation adjustment	—		—			—			4,162			4,162
Joint venture cash flow hedges	—		—			—			837			837
Balance, December 31, 2010	121,023,140		$	602,882		$	717,058		$	(68,358	)	$	1,251,582
Net income	—		—			276,005			—			276,005
Dividends ($1.52 per share)	—		—			(186,828		)	—			(186,828		)
Issuance of shares under incentive stock plans	1,220,731		13,451			—			—			13,451
Stock-based compensation	—		16,181			—			—			16,181
Excess tax benefit on stock-based compensation	—		5,681			—			—			5,681
Repurchase of common shares	(208,694	)	(7,909		)	—			—			(7,909		)
Net loss from pension and postretirement plans	—		—			—			(46,263		)	(46,263		)
Foreign currency translation adjustment	—		—			—			3,546			3,546
Joint venture cash flow hedges	—		—			—			(2,373		)	(2,373		)
Balance, December 31, 2011	122,035,177		$	630,286		$	806,235		$	(113,448	)	$	1,323,073

Tax Characteristics of Cash Dividend [Table Text Block]

The table below summarizes the tax characteristics of the cash dividend paid to shareholders for the three years ended December 31, 2011:

	2011		2010		2009
Capital gain	$	1.52	$	1.36	$	1.03
Non-taxable return of capital	—		—		0.30
Total cash dividend per common share	$	1.52	$	1.36	$	1.33