Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income		$ 10,938		$ 31,714		$ 89,910
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		34,190		38,105		26,749
Basis of real estate sold		8,011		7,012		8,646
Change in deferred taxes		1,853		(5,696)		(1,616)
Employee benefit plans		10,479		4,986		2,122
Equity-based compensation expense		4,390		4,758		4,137
Loss on sale of central Idaho timber and timberlands		48,522
Other, net		(1,198)		(2,046)		(2,191)
Change in:
Receivables		(3,712)		(3,864)		7,016
Inventories		(17,460)		(3,672)		4,785
Other assets		(473)		898		(1,421)
Accounts payable and accrued liabilities		7,232		267		(2,388)
Other liabilities		645		1,552		(827)
Funding of qualified pension plans		(1,300)				(3,550)
Net cash from operating activities		102,117		74,014		131,372
CASH FLOWS FROM INVESTING ACTIVITIES
Change in short-term investments	[1]			6,995		1,810
Transfer from company owned life insurance (COLI)		6,384		1,492		28,870
Transfer to COLI		(3,967)				(25,515)
Purchase of property, plant and equipment		(5,866)		(18,987)		(13,261)
Timberlands reforestation and roads		(13,422)		(13,745)		(10,971)
Acquisition of timber and timberlands		(1,244)		(10,230)		(388,952)
Net proceeds from sale of central Idaho timber and timberlands		111,460
Other, net		6		886		1,263
Net cash from investing activities		93,351		(33,589)		(406,756)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends to common stockholders		(60,842)		(61,017)		(57,848)
Revolving line of credit borrowings (repayment)		(30,000)		30,000
Repayment of long-term debt		(113,335)		(22,500)
Repurchase of common stock		(5,956)
Proceeds from issuance of long-term debt		93,235				310,000
Other, net		(3,911)		(3,000)		(1,783)
Net cash from financing activities		(120,809)		(56,517)		250,369
Change in cash and cash equivalents	[1]	74,659		(16,092)		(25,015)
Cash and cash equivalents at beginning of year	[1]	7,925	[2]	24,017		49,032
Cash and cash equivalents at end of year	[1]	82,584	[2]	7,925	[2]	24,017
Cash paid (received) during the year for:
Interest, net of amounts capitalized		28,051		29,676		20,918
Income taxes, net		$ (8,081)		$ 1,576		$ 18,104

[1] Certain short-term investments in 2015 and 2014 were reclassified to cash and cash equivalents to conform with the 2016 presentation.

[2] Short-term investments as of December 31, 2015 were reclassified to cash and cash equivalents to conform with the 2016 presentation.