Condensed Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
SALES	$ 357,397	$ 312,210	$ 715,127	$ 622,410
Costs and Expenses
Cost of sales	262,772	242,940	520,283	475,794
Selling and general expenses	15,992	15,172	32,425	32,139
Other Operating Expense (Income), net	709	(1,260)	(1,409)	(5,828)
Costs and Expenses, Total	279,473	256,852	551,299	502,105
Equity in income of New Zealand joint venture	1,149	986	2,823	531
OPERATING INCOME BEFORE GAIN ON SALE OF A PORTION OF THE INTEREST IN THE NEW ZEALAND JOINT VENTURE	79,073	56,344	166,651	120,836
Gain on sale of a portion of the interest in the New Zealand joint venture	0	0	0	12,367
OPERATING INCOME	79,073	56,344	166,651	133,203
Interest expense	(12,628)	(12,250)	(25,945)	(24,736)
Interest and miscellaneous income, net	314	408	605	598
INCOME BEFORE INCOME TAXES	66,759	44,502	141,311	109,065
Income tax expense	(10,305)	(5,944)	(26,446)	(13,554)
NET INCOME	56,454	38,558	114,865	95,511
OTHER COMPREHENSIVE INCOME (LOSS)
Foreign currency translation adjustment	7,442	(2,045)	7,729	(3,261)
Joint venture cash flow hedges	699	816	132	1,026
Amortization of pension and postretirement benefit costs, net of income tax expense (benefit) of $927 and $221, and $1,854 and ($2,366)	2,094	535	4,188	4,639
COMPREHENSIVE INCOME	$ 66,689	$ 37,864	$ 126,914	$ 97,915
EARNINGS PER COMMON SHARE
Basic earnings per share	$ 0.70	$ 0.48	$ 1.42	$ 1.20
Diluted earnings per share	$ 0.67	$ 0.48	$ 1.38	$ 1.18
Dividends per share	$ 0.54	$ 0.50	$ 1.08	$ 1.00
PRO FORMA BASIS (ADJUSTED FOR 3-FOR-2 STOCK SPLIT EFFECTIVE AUGUST 2011) (NOTE 2)
Basic earnings per share, pro forma	$ 0.46	$ 0.32	$ 0.94	$ 0.80
Diluted earnings per share, pro forma	$ 0.45	$ 0.32	$ 0.92	$ 0.79
Dividends per share, pro forma	$ 0.36	$ 0.33	$ 0.72	$ 0.67