Condensed Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
SALES	$ 385,091	$ 377,515	$ 1,100,218	$ 999,925
Costs and Expenses
Cost of sales	266,184	269,203	786,467	744,996
Selling and general expenses	15,762	17,125	48,187	49,264
Other operating income, net	(4,171)	(792)	(5,580)	(6,620)
Costs and Expenses, Total	277,775	285,536	829,074	787,640
Equity in income of New Zealand joint venture	994	103	3,817	634
OPERATING INCOME BEFORE GAIN ON SALE OF A PORTION OF THE INTEREST IN THE NEW ZEALAND JOINT VENTURE	108,310	92,082	274,961	212,919
Gain on sale of a portion of the interest in the New Zealand joint venture	0	0	0	12,367
OPERATING INCOME	108,310	92,082	274,961	225,286
Interest expense	(12,356)	(12,943)	(38,300)	(37,680)
Interest and miscellaneous income, net	331	345	935	943
INCOME BEFORE INCOME TAXES	96,285	79,484	237,596	188,549
Income tax benefit (expense)	8,624	(16,580)	(17,822)	(30,134)
NET INCOME	104,909	62,904	219,774	158,415
OTHER COMPREHENSIVE INCOME (LOSS)
Foreign currency translation adjustment	3,584	3,198	11,314	(64)
Joint venture cash flow hedges	(630)	(104)	(498)	922
Amortization of pension and postretirement benefit costs, net of income tax expense (benefit) of $1,017 and $661, and $2,871 and ($1,705)	2,261	1,210	6,449	5,849
COMPREHENSIVE INCOME	$ 110,124	$ 67,208	$ 237,039	$ 165,122
EARNINGS PER COMMON SHARE (NOTE 2)
Basic earnings per share	$ 0.86	$ 0.52	$ 1.81	$ 1.32
Diluted earnings per share	$ 0.84	$ 0.51	$ 1.75	$ 1.30
Dividends per share	$ 0.40	$ 0.33	$ 1.12	$ 1.00