Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Taxes [Abstract]

Income tax expense (benefit)

	2011		2010		2009
Continuing operations	$	21,849	$	19,391	$	5,335
Discontinued operations		(597)		(735)		175
		21,252		18,656		5,510

Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures

	2011		2010		2009
Income from continuing operations before income taxes and income (loss) from affiliates and joint ventures:
Domestic	$	53,049	$	42,306	$	16,456
Foreign		23,396		19,157		23,376
		76,445		61,463		39,832

Components of the provision for income taxes

	2011		2010		2009
Provision (benefit) for income taxes:
Federal:
Current	$	5,466	$	8,173	$	196
Deferred		6,538		911		1,145
State:
Current		2,911		2,360		421
Deferred		376		-		253
Foreign:
Current		6,818		7,316		1,851
Deferred		(260)		631		1,469
		21,849		19,391		5,335

Significant portions of the deferred tax assets and liabilities

	2011		2010
Deferred tax assets attributable to:
Accounts receivable	$	996	$	1,248
Inventories		1,700		2,513
Employee benefit plans		25,638		19,070
Accrued liabilities		475		703
Employee incentive plans		2,654		-
Tax credit carryforwards		7,611		7,309
Available-for-sale securities		2,759		-
Other		800		2,424
Total deferred tax assets		42,633		33,267
Deferred tax liabilities attributable to:
Plant and equipment		(18,136)		(10,971)
Land and mineral reserves		(897)		(959)
Joint ventures		(1,465)		(1,524)
Intangible assets		(1,692)		-
Available-for-sale securities		-		(1,022)
Other		(1,234)		(1,822)
Total deferred tax liabilities		(23,424)		(16,298)
Valuation allowances		(6,782)		(4,540)
Net deferred tax assets		12,427		12,429

Effective income tax rate reconciliation

	2011					2010					2009
	Amount			Percent of Pretax Income		Amount			Percent of Pretax Income		Amount			Percent of Pretax Income
Provision for income taxes at U.S. statutory rates	$	26,756			35.0%	$	21,512			35.0%	$	13,955			35.0%
Increase (decrease) in taxes resulting from:
Percentage depletion		(4,900	)		-6.3%		(3,870	)		-6.4%		(3,257	)		-8.2%
State taxes, net of federal benefit		2,154			2.8%		1,547			2.5%		731			1.8%
Foreign tax rates		(2,123	)		-2.8%		(1,226	)		-2.0%		(4,560	)		-11.4%
Change in reserve for tax uncertainties		(364	)		-0.5%		-			0.0%		(2,975	)		-7.5%
Audit settlement		(118	)		-0.2%		-			0.0%		2,083			5.2%
Discrete items related to foreign tax filings		1,393			1.8%		-			0.0%		-			0.0%
Foreign tax credits		(2,359	)		-3.0%		(2,178	)		-3.5%		(880	)		-2.2%
Changes to valuation allowance		(517	)		-0.7%		2,591			4.2%		28			0.1%
Tax from foreign disregarded entities		262			0.3%		1,414			2.3%		142			0.4%
Other		1,665			2.2%		(399	)		-0.6%		68			0.2%
		21,849			28.6%		19,391			31.5%		5,335			13.4%

Activity related to unrecognized tax benefits

	2011		2010		2009
Balance at beginning of the year	$	464	$	359	$	5,033
Increases related to prior year tax positions		-		105		120
Increases related to current year tax positions		-		-		86
Decreases related to the expiration of statue of limitation / settlement of audits		(464)		-		(4,880)
Balance at the end of the year		-		464		359