Consolidated Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 28,730	$ 41,744
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	19,271	22,916
Basis of real estate sold	1,623	10,053
Change in deferred taxes	10,539	7,506
Loss (gain) on disposition of property, plant and equipment	(1)	(106)
Employee benefit plans	3,001	(1,589)
Equity-based compensation expense	3,057	3,144
Asset Impairment	0	1,180
Proceeds from sales deposited with a like-kind exchange intermediary	(526)	0
Funding of qualified pension plans	(21,630)	(9,400)
Working capital changes	(1,031)	(3,342)
Net cash provided by operating activities	43,033	72,106
CASH FLOWS FROM INVESTING ACTIVITIES
Decrease in short-term investments	9,560	10,559
Proceeds from company owned life insurance (COLI) loan	21,751	0
Additions to property, plant and equipment	(3,502)	(4,163)
Additions To Timber And Timberlands	(8,367)	(7,915)
Proceeds from disposition of property, plant and equipment	35	185
Other, net	(1,252)	(1,564)
Net cash provided by investing activities	18,225	(2,898)
CASH FLOWS FROM FINANCING ACTIVITIES
Distributions to common stockholders	(37,520)	(61,458)
Payments on long-term debt	(21,662)	(5,011)
Issuance of common stock	709	1,230
Change in book overdrafts	(29)	(1,377)
Deferred financing costs	(30)	(343)
Employee tax withholdings on equity-based compensation	(1,714)	(1,610)
Other, net	202	(15)
Net cash used for financing activities	(60,044)	(68,584)
Increase in cash	1,214	624
Cash at beginning of period	7,819	5,593
Cash at end of period	9,033	6,217
Cash paid (received) during the year for:
Interest, net of amount capitalized	13,171	13,974
Income taxes, net	(38)	(5,977)
Non-cash investing activity:
Additions to timber and timberlands	$ 60	$ 341