Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity [Table Text Block]

An analysis of shareholders’ equity for the nine months ended September 30, 2012 and the year ended December 31, 2011 is shown below (share amounts not in thousands):

	Common Shares					Retained Earnings			Accumulated Other Comprehensive Loss			Shareholders’ Equity
	Shares		Amount
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
New Zealand 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
Net income	—		—			203,076			—			203,076
Dividends ($1.24 per share)	—		—			(153,545		)	—			(153,545		)
Issuance of shares under incentive stock plans	1,323,581		20,732			—			—			20,732
Stock-based compensation	—		12,212			—			—			12,212
Excess tax benefit on stock-based compensation	—		7,057			—			—			7,057
Repurchase of common shares	(169,757	)	(7,783		)	—			—			(7,783		)
Amortization of losses from pension and postretirement plans	—		—			—			9,943			9,943
Foreign currency translation adjustment	—		—			—			3,115			3,115
New Zealand joint venture cash flow hedges	—		—			—			86			86
Balance, September 30, 2012	123,189,001		$	662,504		$	855,766		$	(100,304	)	$	1,417,966