NewMarket (NEU) 10-Q 30 Jul 14 2014 Q2 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	6 Months Ended
	Jun. 30, 2014
Document And Entity Information [Abstract]	'
Document Type	'10-Q
Amendment Flag	'false
Document Period End Date	30-Jun-14
Document Fiscal Year Focus	'2014
Document Fiscal Period Focus	'Q2
Entity Registrant Name	'NEWMARKET CORP
Entity Central Index Key	'0001282637
Current Fiscal Year End Date	'--12-31
Entity Filer Category	'Large Accelerated Filer
Entity Common Stock, Shares Outstanding	12,644,790

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]	'	'	'	'
Net sales	$620,438	$583,779	$1,196,860	$1,143,529
Cost of goods sold	439,692	414,351	854,184	805,694
Gross profit	180,746	169,428	342,676	337,835
Selling, general, and administrative expenses	40,913	39,921	80,461	80,862
Research, development, and testing expenses	35,367	36,429	67,574	67,450
Operating (loss) profit	104,466	93,078	194,641	189,523
Interest and financing expenses, net	4,346	4,573	8,510	9,355
Other (expense) income, net	-2,203	5,374	-4,419	6,121
Income from continuing operations before income tax expense	97,917	93,879	181,712	186,289
Income tax expense	31,153	29,495	57,425	54,964
Income from continuing operations	66,764	64,384	124,287	131,325
(Loss) income from operations of discontinued business, net of tax	0	-374	0	520
Net income	$66,764	$64,010	$124,287	$131,845
Earnings per share - basic and diluted:	'	'	'	'
Income from continuing operations (in dollars per share)	$5.24	$4.84	$9.66	$9.84
Income from discontinued operations (in dollars per share)	$0	($0.03)	$0	$0.04
Net income (in dollars per share)	$5.24	$4.81	$9.66	$9.88
Cash dividends declared per common share (in dollars per share)	$1.10	$0.90	$2.20	$1.80

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'		'		'		'
Net income	$66,764		$64,010		$124,287		$131,845
Pension plans and other postretirement benefits:	'		'		'		'
Amortization of prior service cost (credit) included in net periodic benefit cost, net of income tax expense (benefit) of $4 in second quarter 2014, $1 in second quarter 2013, $8 in six months 2014 and $3 in six months 2013	-3	[1]	3	[1]	-6	[1]	5	[1]
Actuarial net gain (loss) arising during the period, net of income tax expense (benefit) of $33 in second quarter and six months 2014 and $95 in second quarter and six months 2013	-90		285		-90		285
Amortization of actuarial net loss (gain) included in net periodic benefit cost, net of income tax expense (benefit) of $383 in second quarter 2014, $794 in second quarter 2013, $767 in six months 2014 and $1,588 in six months 2013	705	[1]	1,362	[1]	1,412	[1]	2,725	[1]
Settlements and curtailments, net of income tax expense (benefit) of $262 in second quarter and six months 2014 and $126 in second quarter and six months 2013	399	[1]	378	[1]	399	[1]	378	[1]
Amortization of transition obligation (asset) included in net periodic benefit cost, net of income tax expense (benefit) of $0 in second quarter 2014, $3 in second quarter 2013, $1 in six months 2014 and $6 in six months 2013	2	[1]	9	[1]	4	[1]	19	[1]
Total pension plans and other postretirement benefits	1,013		2,037		1,719		3,412
Reclassification adjustments for losses (gains) on derivative instruments included in net income, net of income tax expense (benefit) of $942 in second quarter 2013 and $1,077 in six months 2013	0		1,479		0		1,692
Foreign currency translation adjustments, net of income tax expense (benefit) of ($679) in second quarter 2014, ($1,084) in second quarter 2013, $306 in six months 2014 and ($1,758) in six months 2013	8,535		-4,130		9,560		-22,410
Other comprehensive income (loss)	9,548		-614		11,279		-17,306
Comprehensive income	$76,312		$63,396		$135,566		$114,539
[1]	(a) These components of accumulated other comprehensive loss are included in the computation of net periodic benefit cost (income). See Note 4 in this Form 10-Q and Note 18 in our 2013 Annual Report for further information.

Consolidated_Statements_Of_Com1

Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Amortization of prior service cost (credit) included in net periodic benefit cost, income tax expense (benefit)	$4	$1	$8	$3
Actuarial net gain (loss) arising during the period, income tax expense (benefit)	33	95	33	95
Amortization of actuarial net loss (gain) included in net periodic benefit cost, income tax expense (benefit)	383	794	767	1,588
Settlements and curtailments, income tax expense (benefit)	262	126	262	126
Amortization of transition obligation (asset) included in net periodic benefit cost, income tax expense (benefit)	0	3	1	6
Reclassification adjustments for losses (gains) on derivative instruments included in net income, income tax expense (benefit)	'	942	'	1,077
Foreign currency translation adjustments, income tax expense (benefit)	($679)	($1,084)	$306	($1,758)

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$113,644	$238,703
Trade and other accounts receivable, less allowance for doubtful accounts	347,630	309,847
Inventories:	'	'
Finished goods and work-in-process	273,464	257,446
Raw materials	47,346	41,799
Stores, supplies, and other	8,573	8,273
Inventories, total	329,383	307,518
Deferred income taxes	6,346	8,267
Prepaid expenses and other current assets	36,029	32,984
Total current assets	833,032	897,319
Property, plant, and equipment, at cost	1,003,519	985,196
Less accumulated depreciation and amortization	713,072	700,160
Net property, plant, and equipment	290,447	285,036
Prepaid pension cost	61,882	55,087
Deferred income taxes	21,730	22,961
Intangibles (net of amortization) and goodwill	20,338	23,319
Deferred charges and other assets	44,921	43,552
Total assets	1,272,350	1,327,274
Current liabilities:	'	'
Accounts payable	137,479	134,132
Accrued expenses	73,006	77,992
Dividends payable	12,578	12,996
Income taxes payable	11,972	11,419
Other current liabilities	11,023	11,075
Total current liabilities	246,058	247,614
Long-term debt	353,497	349,467
Other noncurrent liabilities	159,298	157,745
Total liabilities	758,853	754,826
Commitments and contingencies	'	'
Shareholders’ equity:	'	'
Common stock and paid-in capital (without par value; authorized shares - 80,000,000; issued and outstanding shares - 12,644,790 at June 30, 2014 and 13,099,356 at December 31, 2013)	0	0
Accumulated other comprehensive loss	-48,807	-60,086
Retained earnings	562,304	632,534
Total shareholders' equity	513,497	572,448
Total liabilities and shareholders’ equity	$1,272,350	$1,327,274

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]	'	'
Common stock, no par value	'	'
Common stock, authorized shares	80,000,000	80,000,000
Common stock, issued shares	12,644,790	13,099,356
Common stock, outstanding shares	12,644,790	13,099,356

Consolidated_Statements_Of_Sha

Consolidated Statements Of Shareholders' Equity (USD $)	Total	Common Stock and Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2012	$402,205	$721	($110,689)	$512,173
Balance (in shares) at Dec. 31, 2012	'	13,417,877	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Net income	131,845	'	'	131,845
Other comprehensive income (loss)	-17,306	'	-17,306	'
Cash dividends	-23,980	'	'	-23,980
Repurchases of common stock (in shares)	'	-105,400	'	'
Repurchases of common stock	-26,798	-1,051	'	-25,747
Stock-based compensation (in shares)	'	-355	'	'
Stock-based compensation	479	469	'	10
Balance at Jun. 30, 2013	466,445	139	-127,995	594,301
Balance (in shares) at Jun. 30, 2013	'	13,312,122	'	'
Balance at Dec. 31, 2013	572,448	0	-60,086	632,534
Balance (in shares) at Dec. 31, 2013	13,099,356	13,099,356	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Net income	124,287	'	'	124,287
Other comprehensive income (loss)	11,279	'	11,279	'
Cash dividends	-28,155	'	'	-28,155
Repurchases of common stock (in shares)	'	-454,400	'	'
Repurchases of common stock	-167,329	-964	'	-166,365
Stock-based compensation (in shares)	'	-166	'	'
Stock-based compensation	967	964	'	3
Balance at Jun. 30, 2014	$513,497	$0	($48,807)	$562,304
Balance (in shares) at Jun. 30, 2014	12,644,790	12,644,790	'	'

Consolidated_Statements_Of_Sha1

Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Stockholders' Equity [Abstract]	'	'	'	'
Cash dividends (in dollars per share)	$1.10	$0.90	$2.20	$1.80

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Statement of Cash Flows [Abstract]	'	'
Cash and cash equivalents at beginning of year	$238,703	$89,129
Cash flows from operating activities:	'	'
Net income	124,287	131,845
Adjustments to reconcile net income to cash flows from operating activities:	'	'
Depreciation and amortization	20,719	25,884
Noncash pension benefits expense	6,060	9,240
Noncash postretirement benefits expense	1,123	1,824
Deferred income tax expense	411	2,413
Unrealized loss (gain) on derivative instruments, net	2,018	-8,239
Working capital changes	-65,654	-35,496
Cash pension benefits contributions	-9,708	-15,685
Cash postretirement benefits contributions	-699	-872
Other, net	5,959	11,992
Cash provided from (used in) operating activities	84,516	122,906
Cash flows from investing activities:	'	'
Capital expenditures	-20,654	-31,849
Deposits for interest rate swap	-4,861	-7,762
Return of deposits for interest rate swap	2,930	17,110
Other, net	-2,485	-2,464
Cash provided from (used in) investing activities	-25,070	-24,965
Cash flows from financing activities:	'	'
Net borrowings (repayments) under revolving credit facility	4,000	-60,000
Net (repayments) borrowings under lines of credit	-151	3,404
Dividends paid	-28,155	-23,980
Debt issuance costs	0	-1,145
Repurchases of common stock	-162,867	-26,798
Cash provided from (used in) financing activities	-187,173	-108,519
Effect of foreign exchange on cash and cash equivalents	2,668	-5,006
(Decrease) increase in cash and cash equivalents	-125,059	-15,584
Cash and cash equivalents at end of period	$113,644	$73,545

Financial_Statement_Presentati

Financial Statement Presentation	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Financial Statement Presentation	'
	Financial Statement Presentation
	In the opinion of management, the accompanying consolidated financial statements of NewMarket Corporation and its subsidiaries contain all necessary adjustments for the fair statement of, in all material respects, our consolidated financial position as of June 30, 2014 and December 31, 2013, our consolidated results of operations and comprehensive income for the second quarter and six months ended June 30, 2014 and June 30, 2013, and our changes in shareholders' equity and cash flows for the six months ended June 30, 2014 and June 30, 2013. All adjustments are of a normal, recurring nature, unless otherwise disclosed. These financial statements should be read in conjunction with the consolidated financial statements and related notes included in the NewMarket Corporation Annual Report on Form 10-K for the year ended December 31, 2013 (2013 Annual Report), as filed with the Securities and Exchange Commission (SEC). The results of operations for the six month period ended June 30, 2014 are not necessarily indicative of the results to be expected for the full year ending December 31, 2014. The December 31, 2013 consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.
	Unless the context otherwise indicates, all references to “we,” “us,” “our,” the “Company,” and “NewMarket” are to NewMarket Corporation and its consolidated subsidiaries.
	Certain reclassifications have been made to the accompanying consolidated financial statements to conform to the current presentation.

Discontinued_Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Discontinued Operations	'
	Discontinued Operations
	On July 2, 2013, Foundry Park I completed the sale of its real estate assets for $144 million in cash, which comprised our entire real estate development segment. The operations of the real estate development segment for all periods presented are reported in (loss) income from operations of discontinued business, net of tax, in the Consolidated Statements of Income. We recognized a gain of $36 million ($22 million after tax) in 2013 related to this transaction.
	The components of (loss) income from operations of discontinued business, net of tax, were as follows:
	(in thousands)	Second Quarter Ended June 30, 2013			Six Months Ended June 30, 2013
	Rental revenue	$	2,858		$	5,716
	Cost of rental	1,068			2,136
	Interest, financing, and other expenses, net	2,401			2,728
	(Loss) income before income tax expense	(611		)	852
	Income tax (benefit) expense	(237		)	332
	(Loss) income from operations of discontinued business, net of tax	$	(374	)	$	520
	Interest and financing expenses, net include only amounts directly related to the Foundry Park I mortgage loan agreement (mortgage loan) and related interest rate swap. Other interest and financing expenses have not been allocated to discontinued operations. The Consolidated Statements of Cash Flows summarize the activity of discontinued operations and continuing operations together.

Segment_Information

Segment Information	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	Segment Information
	The tables below show our consolidated segment results. The “All other” category includes the operations of the tetraethyl lead (TEL) business, as well as certain contract manufacturing performed by Ethyl Corporation (Ethyl).
	Consolidated Revenue by Segment
			Second Quarter Ended						Six Months Ended
			June 30,						June 30,
	(in thousands)		2014			2013			2014			2013
	Petroleum additives
	Lubricant additives		$	513,421		$	475,112		$	986,770		$	927,784
	Fuel additives		104,084			106,227			204,780			211,955
	Total		617,505			581,339			1,191,550			1,139,739
	All other		2,933			2,440			5,310			3,790
	Consolidated revenue		$	620,438		$	583,779		$	1,196,860		$	1,143,529
	Segment Operating Profit
			Second Quarter Ended						Six Months Ended
			June 30,						June 30,
	(in thousands)		2014			2013			2014			2013
	Petroleum additives		$	109,089		$	97,790		$	205,268		$	199,818
	All other		858			183			1,393			(218		)
	Segment operating profit		109,947			97,973			206,661			199,600
	Corporate, general, and administrative expenses		(5,575		)	(5,189		)	(12,128		)	(10,405		)
	Interest and financing expenses, net		(4,346		)	(4,573		)	(8,510		)	(9,355		)
	Gain (loss) on interest rate swap agreement (a)		(2,270		)	5,098			(4,503		)	5,775
	Other income, net		161			570			192			674
	Income from continuing operations before income tax expense		$	97,917		$	93,879		$	181,712		$	186,289
	(a)	The gain (loss) on interest rate swap agreement represents the change, since the beginning of the reporting period, in the fair value of an interest rate swap which we entered into on June 25, 2009. We are not using hedge accounting to record the interest rate swap, and accordingly, any change in the fair value is immediately recognized in earnings.

Pension_Plans_and_Other_Postre

Pension Plans and Other Postretirement Benefits	6 Months Ended
	Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Pension Plans and Other Postretirement Benefits	'
	Pension Plans and Other Postretirement Benefits
	The table below shows cash contributions made during the six months ended June 30, 2014, as well as the remaining cash contributions we expect to make during the year ending December 31, 2014 for both our domestic and foreign pension plans and postretirement benefit plans.
	(in thousands)	Actual Cash Contributions for Six Months Ended June 30, 2014			Expected Remaining Cash Contributions for Year Ending December 31, 2014
	Domestic plans
	Pension benefits	$	6,325		$	8,750
	Postretirement benefits	645			645
	Foreign plans
	Pension benefits	3,383			3,471
	Postretirement benefits	54			0
	The tables below present information on net periodic benefit cost for our pension and postretirement benefit plans.
		Domestic
		Pension Benefits						Postretirement Benefits
		Second Quarter Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	2,388		$	2,664		$	405		$	499
	Interest cost	2,737			2,383			690			681
	Expected return on plan assets	(4,331		)	(3,617		)	(328		)	(364		)
	Amortization of prior service cost	25			4			3			3
	Amortization of actuarial net loss (gain)	978			1,801			(176		)	0
	Net periodic benefit cost (income)	$	1,797		$	3,235		$	594		$	819
		Domestic
		Pension Benefits						Postretirement Benefits
		Six Months Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	4,775		$	5,327		$	810		$	998
	Interest cost	5,475			4,767			1,382			1,363
	Expected return on plan assets	(8,661		)	(7,234		)	(656		)	(728		)
	Amortization of prior service cost	50			8			5			5
	Amortization of actuarial net loss (gain)	1,955			3,602			(353		)	0
	Net periodic benefit cost (income)	$	3,594		$	6,470		$	1,188		$	1,638
		Foreign
		Pension Benefits						Postretirement Benefits
		Second Quarter Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	1,506		$	1,321		$	1		$	8
	Interest cost	1,569			1,324			17			26
	Expected return on plan assets	(2,098		)	(1,686		)	0			0
	Amortization of prior service credit	(26		)	(2		)	0			0
	Amortization of transition obligation	0			0			2			13
	Amortization of actuarial net loss	286			346			3			10
	Settlements and curtailments	0			133			(122		)	71
	Net periodic benefit cost (income)	$	1,237		$	1,436		$	(99	)	$	128
		Foreign
		Pension Benefits						Postretirement Benefits
		Six Months Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	3,001		$	2,675		$	3		$	16
	Interest cost	3,124			2,681			41			53
	Expected return on plan assets	(4,177		)	(3,415		)	0			0
	Amortization of prior service credit	(52		)	(4		)	0			0
	Amortization of transition obligation	0			0			5			26
	Amortization of actuarial net loss	570			700			8			20
	Settlements and curtailments	0			133			(122		)	71
	Net periodic benefit cost (income)	$	2,466		$	2,770		$	(65	)	$	186
	The 2013 settlements and curtailments amounts in the tables above reflect the workforce reduction at our Ethyl Canada facility as a result of the decision to discontinue the production of a fuel additive at this facility. The 2014 amounts reflect the termination of the Ethyl Canada postretirement plan.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	We had 19,865 shares of nonvested restricted stock at June 30, 2014 and 11,585 shares of nonvested restricted stock at June 30, 2013. The nonvested restricted stock is considered a participating security since the stock contains nonforfeitable rights to dividends. As such, we use the two-class method to compute basic and diluted earnings per share. The following table illustrates the earnings allocation method utilized in the calculation of basic and diluted earnings per share from continuing operations.
		Second Quarter Ended				Six Months Ended
		June 30,				June 30,
	(in thousands, except per-share amounts)	2014		2013		2014		2013
	Earnings per share from continuing operations numerator:
	Income from continuing operations attributable to common shareholders before allocation of earnings to participating securities	$	66,764	$	64,384	$	124,287	$	131,325
	Income from continuing operations allocated to participating securities	102		44		192		105
	Income from continuing operations attributable to common shareholders after allocation of earnings to participating securities	$	66,662	$	64,340	$	124,095	$	131,220
	Earnings per share from continuing operations denominator:
	Weighted-average number of shares of common stock outstanding - basic and diluted	12,732		13,303		12,842		13,340
	Earnings per share from continuing operations - basic and diluted	$	5.24	$	4.84	$	9.66	$	9.84

Intangibles_Net_of_Amortizatio

Intangibles (Net of Amortization) and Goodwill	6 Months Ended
	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangibles (Net of Amortization) and Goodwill	'
	Intangibles (Net of Amortization) and Goodwill
			Identifiable Intangibles
			June 30, 2014				December 31, 2013
	(in thousands)		Gross		Accumulated		Gross		Accumulated
			Carrying		Amortization		Carrying		Amortization
			Amount				Amount
	Amortizing intangible assets
	Formulas and technology		$	88,970	$	79,635	$	88,917	$	77,217
	Contracts		7,127		5,973		7,127		5,528
	Customer bases		7,026		3,126		7,012		2,918
	Trademarks and trade names		1,600		690		1,591		610
	Goodwill		5,039				4,945
			$	109,762	$	89,424	$	109,592	$	86,273
	All of the intangibles relate to the petroleum additives segment. The change in the gross carrying amount between 2013 and 2014 is due to foreign currency fluctuations. There is no accumulated goodwill impairment.
	Amortization expense was (in thousands):
	Second quarter ended June 30, 2014	$	1,576
	Six months ended June 30, 2014	3,151
	Second quarter ended June 30, 2013	1,864
	Six months ended June 30, 2013	3,728
	Estimated amortization expense for the remainder of 2014, as well as annual amortization expense related to our intangible assets for the next five years is expected to be (in thousands):
	2014	$	3,012
	2015	5,790
	2016	1,910
	2017	746
	2018	715
	2019	688
	We amortize contracts over 1.5 to 10 years; customer bases over 20 years; and formulas and technology over 5 to 20 years. Trademarks and trade names are amortized over 10 years.

Longterm_Debt

Long-term Debt	6 Months Ended
	Jun. 30, 2014
Long-term Debt and Capital Lease Obligations [Abstract]	'
Long-term Debt	'
	Long-term Debt
	(in thousands)	June 30,		December 31,
		2014		2013
	Senior notes - 4.10% due 2022	$	349,497	$	349,467
	Revolving credit facility	4,000		0
		$	353,497	$	349,467
	The outstanding senior notes have an aggregate principal amount of $350 million and are registered under the Securities Act of 1933.
	The following table provides information related to the unused portion of our revolving credit facility:
	(in thousands)	June 30,		December 31,
		2014		2013
	Maximum borrowing capacity under the revolving credit facility	$	650,000	$	650,000
	Outstanding borrowings under the revolving credit facility	4,000		0
	Outstanding letters of credit	3,100		3,100
	Unused portion of revolving credit facility	$	642,900	$	646,900
	The average interest rate for borrowings under our revolving credit facility was 3.8% during the first six months of 2014 and 2.2% during 2013.
	We were in compliance with all covenants under our debt agreements at June 30, 2014 and at December 31, 2013.

Contractual_Commitments_and_Co

Contractual Commitments and Contingencies	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Contractual Commitments and Contingencies	'
	Contractual Commitments and Contingencies
	Information on certain contractual commitments and contingencies follows.
	Litigation
	We are involved in legal proceedings that are incidental to our business and include administrative or judicial actions seeking remediation under environmental laws, such as Superfund. Some of these legal proceedings relate to environmental matters and involve governmental authorities. For further information, see “Environmental” below.
	While it is not possible to predict or determine with certainty the outcome of any legal proceeding, we believe the outcome of any of these proceedings, or all of them combined, will not result in a material adverse effect on our consolidated results of operations, financial condition, or cash flows.
	As we previously disclosed, the United States Department of Justice has advised us that it is conducting a review of certain of our foreign business activities in relation to compliance with relevant U.S. economic sanctions programs and anti-corruption laws, as well as certain historical conduct in the domestic U.S. market, and has requested certain information in connection with such review. We are cooperating with the investigation. In connection with such cooperation, we have voluntarily agreed to provide certain information and are conducting an internal review for that purpose.
	Environmental
	We are involved in environmental proceedings and potential proceedings relating to soil and groundwater contamination, disposal of hazardous waste, and other environmental matters at several of our current or former facilities, or at third-party sites where we have been designated as a potentially responsible party (PRP). We accrue for environmental remediation and monitoring activities for which costs can be reasonably estimated and are probable. These estimates are based on an assessment of the site, available clean-up methods, and prior experience in handling remediation. Recorded liabilities are discounted to present value (including an inflation factor in the estimate) only if we can reliably determine the amount and timing of future cash payments. While we believe we are currently adequately accrued for known environmental issues, it is possible that unexpected future costs could have a significant impact on our financial position, results of operations, and cash flows. Our total accruals for environmental remediation, dismantling, and decontamination were approximately $17 million at June 30, 2014 and $18 million at December 31, 2013.
	Our more significant environmental sites include a former TEL plant site in Louisiana (the Louisiana site) and a former Houston, Texas plant site (the Texas site). Together, the amounts accrued on a discounted basis related to these sites represent approximately $11 million at both June 30, 2014 and December 31, 2013 of the total accrual above, using discount rates ranging from 3% to 9%. Of the total accrued for these two sites, the amount related to remediation of groundwater and soil at both June 30, 2014 and December 31, 2013 was $5 million for the Louisiana site and $6 million for the Texas site. The aggregate undiscounted amount for these sites was $15 million at June 30, 2014 and $16 million at December 31, 2013.
	In 2000, the EPA named us as a PRP under Superfund law for the clean-up of soil and groundwater contamination at the five grouped disposal sites known as "Sauget Area 2 Sites" in Sauget, Illinois. Without admitting any fact, responsibility, fault, or liability in connection with this site, we are participating with other PRPs in site investigations and feasibility studies. In December 2013, the EPA issued its Record of Decision confirming its remedies for the selected Sauget Area 2 sites. We have accrued our estimated proportional share of the remedial costs and expenses addressed in the Record of Decision. We do not believe there is any additional information available as a basis for revision of the liability that we have established at June 30, 2014. The amount accrued for this site is not material.
	Guarantees
	We have agreements with several financial institutions that provide guarantees for certain business activities of our subsidiaries, including performance, insurance, credit, and lease guarantees. The parent company provides guarantees of the subsidiaries' performance under these agreements and also provides a guarantee for repayment of a line of credit for a subsidiary in China. Guarantees outstanding under all of these agreements at June 30, 2014 are $6 million. Certain of these guarantees are secured by letters of credit, all of which were issued under the $100 million letter of credit sub-facility of our revolving credit facility. The maximum potential amount of future payments under all other guarantees not secured by letters of credit at June 30, 2014 is $17 million. Expiration dates of the letters of credit and certain guarantees range from 2014 to 2015. Some of the guarantees have no expiration date. We renew letters of credit as necessary.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities

6 Months Ended

Jun. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

'

Derivatives and Hedging Activities

'

Derivatives and Hedging Activities

We are exposed to certain risks arising from both our business operations and economic conditions. We primarily manage our exposures to a wide variety of business and operational risks through management of our core business activities.

We manage certain economic risks, including interest rate, liquidity, and credit risks, primarily by managing the amount, sources, and duration of our debt funding, as well as through the use of derivative financial instruments. Specifically, we have entered, and may enter in the future, into interest rate swaps to manage our exposure to interest rate movements.

Our foreign operations expose us to fluctuations of foreign exchange rates. These fluctuations may impact the value of our cash receipts and payments as compared to our reporting currency, the U.S. Dollar. To manage this exposure, we sometimes enter into foreign currency forward contracts to minimize currency exposure due to cash flows from foreign operations. There were no such contracts outstanding at June 30, 2014 or December 31, 2013.

Non-designated Hedges

On June 25, 2009, we entered into an interest rate swap with Goldman Sachs in the notional amount of $97 million and with a maturity date of January 19, 2022 (Goldman Sachs interest rate swap). NewMarket entered into the Goldman Sachs interest rate swap in connection with the termination of a loan application and related rate lock agreement between Foundry Park I and Principal Commercial Funding II, LLC (Principal). When the rate lock agreement was originally executed in 2007, Principal simultaneously entered into an interest rate swap with a third party to hedge Principal’s exposure to fluctuation in the ten-year United States Treasury Bond rate. Upon the termination of the rate lock agreement on June 25, 2009, Goldman Sachs both assumed Principal’s position with the third party and entered into an offsetting interest rate swap with NewMarket. Under the terms of this interest rate swap, NewMarket is making fixed rate payments at 5.3075% and Goldman Sachs makes variable rate payments based on three-month LIBOR. We have collateralized this exposure through cash deposits posted with Goldman Sachs amounting to $28 million at June 30, 2014 and $26 million at December 31, 2013.

We have made an accounting policy election to not offset derivative fair value amounts with the fair value amounts for the right to reclaim cash collateral under our master netting arrangement. We do not use hedge accounting for the Goldman Sachs interest rate swap, and therefore, immediately recognize any change in the fair value of this derivative financial instrument directly in earnings.

*****

The table below presents the fair value of our derivative financial instruments, as well as their classification on the Consolidated Balance Sheets.

Liability Derivatives

June 30, 2014

December 31, 2013

(in thousands)

Balance

Fair Value

Balance

Fair Value

Sheet

Sheet

Location

Location

Derivatives Not Designated as Hedging Instruments

Goldman Sachs interest rate swap

Accrued expenses and Other noncurrent liabilities

$

23,229

Accrued expenses and Other noncurrent liabilities

$

21,211

The following table presents the effect of our derivative financial instruments on the Consolidated Statements of Income.

Effect of Derivative Instruments on the Consolidated Statements of Income

Non-Designated Derivatives

(in thousands)

Derivatives Not Designated as Hedging Instruments

Location of Gain (Loss) Recognized in

Amount of Gain (Loss) Recognized in

Income on Derivatives

Income on Derivatives

Second Quarter Ended

Six Months Ended

June 30,

June 30,

2014

2013

2014

2013

Goldman Sachs interest rate swap

Other (expense) income, net

$

(2,270

)

$

5,097

$

(4,503

)

$

5,775

Credit-risk Related Contingent Features

The agreement we have with our current derivative counterparty contains a provision where we could be declared in default on our derivative obligation if repayment of indebtedness is accelerated by our lender(s) due to our default on the indebtedness.

As of June 30, 2014, the fair value of the derivative in a net liability position related to this agreement, which includes accrued interest but excludes any adjustment for nonperformance risk, was $23 million. We have minimum collateral posting thresholds with the counterparty and have posted cash collateral of $28 million as of June 30, 2014. If required, we could have settled our obligations under the agreement at the termination value of $23 million at June 30, 2014.

Other_Comprehensive_Income_Los

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss	'
	Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss
	The balances of, and changes in, the components of accumulated other comprehensive loss, net of tax, consist of the following:
	(in thousands)	Pension Plans			Derivative Instruments			Foreign Currency Translation Adjustments			Accumulated Other
		and Other Postretirement Benefits									Comprehensive (Loss) Income
	Balance at December 31, 2012	$	(96,139	)	$	(4,173	)	$	(10,377	)	$	(110,689	)
	Other comprehensive income (loss) before reclassifications	285			0			(22,410		)	(22,125		)
	Amounts reclassified from accumulated other comprehensive loss	3,127			1,692			0			4,819
	Other comprehensive income (loss)	3,412			1,692			(22,410		)	(17,306		)
	Balance at June 30, 2013	$	(92,727	)	$	(2,481	)	$	(32,787	)	$	(127,995	)
	Balance at December 31, 2013	$	(44,493	)	$	0		$	(15,593	)	$	(60,086	)
	Other comprehensive income (loss) before reclassifications	(90		)	0			9,560			9,470
	Amounts reclassified from accumulated other comprehensive loss	1,809			0			0			1,809
	Other comprehensive income (loss)	1,719			0			9,560			11,279
	Balance at June 30, 2014	$	(42,774	)	$	0		$	(6,033	)	$	(48,807	)
	The following table illustrates the amounts, net of tax, reclassified out of each component of accumulated other comprehensive loss and their location within the respective line items on the Consolidated Statements of Income.
	(in thousands)	Amount Reclassified from Accumulated Other Comprehensive Loss
	Accumulated Other Comprehensive Loss Component	Second Quarter Ended						Six Months Ended						Affected Line Item on the Consolidated Statements of Income
		June 30,						June 30,
		2014			2013			2014			2013
	Pension plans and other postretirement benefits:
	Amortization of prior service (credit) cost	$	(3	)	$	3		$	(6	)	$	5		(a)
	Amortization of actuarial net loss	705			1,362			1,412			2,725			(a)
	Settlements and curtailments	399			378			399			378			(a)
	Amortization of transition obligation	2			9			4			19			(a)
	Total pension plans and other postretirement benefits	1,103			1,752			1,809			3,127
	Derivative instruments:
	Amortization of mortgage loan interest rate swap	0			1,466			0			1,666			(Loss) income from operations of discontinued business, net of tax (b)
	Amortization of construction loan interest rate swap	0			13			0			26			(Loss) income from operations of discontinued business, net of tax (b)
	Total derivative instruments	0			1,479			0			1,692
	Total reclassifications for the period	$	1,103		$	3,231		$	1,809		$	4,819
	(a) These components of accumulated other comprehensive loss are included in the computation of net periodic benefit cost (income). See Note 4 in this Form 10-Q and Note 18 in our 2013 Annual Report for further information.
	(b) Amounts relate to the Foundry Park I mortgage loan interest rate swap and the construction loan interest rate swap. Amounts are presented net of income tax expense of $934 thousand for the mortgage loan interest rate swap and $8 thousand for the construction loan interest rate swap for the second quarter ended June 30, 2013 and $1.1 million for the mortgage loan interest rates swap and $16 thousand for the construction loan interest rate swap for the six months ended June 30, 2013. Due to the sale of the real estate assets of Foundry Park I in July 2013, the amounts recorded in accumulated other comprehensive loss for both interest rate swaps were completely recognized in the Consolidated Statements of Income in 2013.

Fair_Value_Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	The following table provides information on assets and liabilities measured at fair value on a recurring basis. No material events occurred during the six months ended June 30, 2014 requiring adjustment to the recognized balances of assets or liabilities which are recorded at fair value on a nonrecurring basis.
		Carrying Amount in Consolidated Balance Sheets				Fair Value Measurements Using
				Fair Value		Level 1		Level 2		Level 3
	(in thousands)	June 30, 2014
	Cash and cash equivalents	$	113,644	$	113,644	$	113,644	$	0	$	0
	Cash deposit for collateralized interest rate swap	27,770		27,770		27,770		0		0
	Interest rate swap liability	23,229		23,229		0		23,229		0
		December 31, 2013
	Cash and cash equivalents	$	238,703	$	238,703	$	238,703	$	0	$	0
	Cash deposit for collateralized interest rate swap	25,839		25,839		25,839		0		0
	Interest rate swap liability	21,211		21,211		0		21,211		0
	We determine the fair value of derivative instruments shown in the table above by using widely-accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of the instrument. The analysis reflects the contractual term of the derivative, including the period to maturity, and uses observable market-based inputs.
	The fair value of the interest rate swap is determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments are based on an expectation of future interest rates derived from observable market interest rate curves. In determining the fair value measurements, we incorporate credit valuation adjustments to appropriately reflect both our nonperformance risk and the counterparties’ nonperformance risk.
	Although we have determined that the majority of the inputs used to value our derivative fall within Level 2 of the fair value hierarchy, the credit valuation adjustment associated with the derivative utilizes Level 3 inputs. These Level 3 inputs include estimates of current credit spreads to evaluate the likelihood of default by both us and the counterparties to the derivative. As of June 30, 2014 and December 31, 2013, we have assessed the significance of the impact of the credit valuation adjustment on the overall valuation of our derivative and have determined that the credit valuation adjustment is not significant to the overall valuation of the derivative. Accordingly, we have determined that our derivative valuation should be classified in Level 2 of the fair value hierarchy.
	We have made an accounting policy election to measure credit risk of any derivative financial instruments subject to master netting agreements on a net basis by counterparty portfolio.
	Long-term debt – We record the value of our long-term debt at historical cost. The estimated fair value of our long-term debt is shown in the following table and is based primarily on estimated current rates available to us for debt of the same remaining duration and adjusted for nonperformance risk and credit risk. The estimated fair value is determined by the market standard practice of modeling the contractual cash flows required under the debt instrument and discounting the cash flows back to present value at the appropriate credit-risk adjusted market interest rates. For floating rate debt obligations, we use forward rates, derived from observable market yield curves, to project the expected cash flows we will be required to make under the debt instrument. We then discount those cash flows back to present value at the appropriate credit-risk adjusted market interest rates. The fair value is categorized as Level 2.
		June 30, 2014				December 31, 2013
	(in thousands)	Carrying		Fair		Carrying		Fair
		Amount		Value		Amount		Value
	Long-term debt	$	353,497	$	375,319	$	349,467	$	345,283

Consolidating_Financial_Inform

Consolidating Financial Information	6 Months Ended
	Jun. 30, 2014
Consolidating Financial Information [Abstract]	'
Consolidating Financial Information	'
	Consolidating Financial Information
	The 4.10% senior notes are guaranteed on a senior unsecured basis by certain of our domestic subsidiaries that guarantee our obligations under the revolving credit facility and any of our other indebtedness (Guarantor Subsidiaries). The subsidiary guarantees are joint and several obligations of the Guarantor Subsidiaries. The indenture governing the 4.10% senior notes includes a provision which allows for a Guarantor Subsidiary to be released of its obligations under the subsidiary guarantee under certain conditions. Those conditions include the sale or other disposition of all or substantially all of the Guarantor Subsidiary's assets in compliance with the indenture and the release or discharge of a Guarantor Subsidiary from its obligations as a guarantor under our revolving credit facility and all of our other indebtedness. The Guarantor Subsidiaries and the subsidiaries that do not guarantee the 4.10% senior notes (the Non-Guarantor Subsidiaries) are 100% owned by NewMarket Corporation (the Parent Company). The Guarantor Subsidiaries consist of the following:
	Ethyl Corporation	Afton Chemical Corporation
	NewMarket Services Corporation	Afton Chemical Additives Corporation
	We conduct all of our business through and derive essentially all of our income from our subsidiaries. Therefore, our ability to make payments on the 4.10% senior notes or other obligations is dependent on the earnings and the distribution of funds from our subsidiaries.
	The following sets forth the Consolidating Statements of Income and Comprehensive Income for the second quarter and six months ended June 30, 2014 and June 30, 2013; Consolidating Balance Sheets as of June 30, 2014 and December 31, 2013; and Condensed Consolidating Statements of Cash Flows for the six months ended June 30, 2014 and June 30, 2013 for the Parent Company, the Guarantor Subsidiaries, and the Non-Guarantor Subsidiaries. The financial information is based on our understanding of the SEC's interpretation and application of Rule 3-10 of the SEC Regulation S-X. During 2013, certain subsidiaries that had been Guarantor Subsidiaries were released from their obligations under the revolving credit facility, and therefore were released as a Subsidiary Guarantor under the 4.10% senior notes. Prior periods have been revised to reflect the change in Guarantor Subsidiaries and Non-Guarantor subsidiaries.
	The financial information may not necessarily be indicative of results of operations or financial position had the Guarantor Subsidiaries or Non-Guarantor Subsidiaries operated as independent entities. The Parent Company accounts for investments in these subsidiaries using the equity method.
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Second Quarter Ended June 30, 2014
	(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales		$	0		$	239,631		$	380,807		$	0		$	620,438
	Cost of goods sold		0			117,140			322,552			0			439,692
	Gross profit		0			122,491			58,255			0			180,746
	Selling, general, and administrative expenses		1,609			22,131			17,173			0			40,913
	Research, development, and testing expenses		0			25,604			9,763			0			35,367
	Operating (loss) profit		(1,609		)	74,756			31,319			0			104,466
	Interest and financing expenses, net		4,535			(1,028		)	839			0			4,346
	Other (expense) income, net		(2,260		)	(36		)	93			0			(2,203		)
	(Loss) income before income taxes and equity income of subsidiaries		(8,404		)	75,748			30,573			0			97,917
	Income tax (benefit) expense		(3,505		)	27,556			7,102			0			31,153
	Equity income of subsidiaries		71,663			0			0			(71,663		)	0
	Net income		66,764			48,192			23,471			(71,663		)	66,764
	Other comprehensive income (loss)		9,548			1,448			7,758			(9,206		)	9,548
	Comprehensive income		$	76,312		$	49,640		$	31,229		$	(80,869	)	$	76,312
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Second Quarter Ended June 30, 2013
	(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales		$	0		$	233,955		$	349,824		$	0		$	583,779
	Cost of goods sold		0			122,851			291,500			0			414,351
	Gross profit		0			111,104			58,324			0			169,428
	Selling, general, and administrative expenses		1,779			22,059			16,083			0			39,921
	Research, development, and testing expenses		0			24,104			12,325			0			36,429
	Operating (loss) profit		(1,779		)	64,941			29,916			0			93,078
	Interest and financing expenses, net		4,749			(1,072		)	896			0			4,573
	Other (expense) income, net		5,118			(1		)	257			0			5,374
	(Loss) income from continuing operations before income taxes and equity income of subsidiaries		(1,410		)	66,012			29,277			0			93,879
	Income tax (benefit) expense		(759		)	16,898			13,356			0			29,495
	Equity income of subsidiaries		64,661			0			0			(64,661		)	0
	Income from continuing operations		64,010			49,114			15,921			(64,661		)	64,384
	(Loss) income from operations of discontinued business, net of tax		0			0			(374		)	0			(374		)
	Net income		64,010			49,114			15,547			(64,661		)	64,010
	Other comprehensive income (loss)		(614		)	665			(2,102		)	1,437			(614		)
	Comprehensive income		$	63,396		$	49,779		$	13,445		$	(63,224	)	$	63,396
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Six Months Ended June 30, 2014
	(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales		$	0		$	447,905		$	748,955		$	0		$	1,196,860
	Cost of goods sold		0			218,814			635,370			0			854,184
	Gross profit		0			229,091			113,585			0			342,676
	Selling, general, and administrative expenses		3,338			43,010			34,113			0			80,461
	Research, development, and testing expenses		0			47,634			19,940			0			67,574
	Operating (loss) profit		(3,338		)	138,447			59,532			0			194,641
	Interest and financing expenses, net		8,883			(2,010		)	1,637			0			8,510
	Other (expense) income, net		(4,492		)	(61		)	134			0			(4,419		)
	(Loss) income before income taxes and equity income of subsidiaries		(16,713		)	140,396			58,029			0			181,712
	Income tax (benefit) expense		(6,984		)	49,207			15,202			0			57,425
	Equity income of subsidiaries		134,016			0			0			(134,016		)	0
	Net income		124,287			91,189			42,827			(134,016		)	124,287
	Other comprehensive income (loss)		11,279			1,993			8,602			(10,595		)	11,279
	Comprehensive income		$	135,566		$	93,182		$	51,429		$	(144,611	)	$	135,566
NewMarket Corporation and Subsidiaries
Consolidating Statements of Income and Comprehensive Income
Six Months Ended June 30, 2013
(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
Net sales		$	0		$	454,020		$	689,509		$	0		$	1,143,529
Cost of goods sold		0			234,145			571,549			0			805,694
Gross profit		0			219,875			117,960			0			337,835
Selling, general, and administrative expenses		3,464			43,135			34,263			0			80,862
Research, development, and testing expenses		0			46,057			21,393			0			67,450
Operating (loss) profit		(3,464		)	130,683			62,304			0			189,523
Interest and financing expenses, net		9,559			(2,010		)	1,806			0			9,355
Other (expense) income, net		5,819			(6		)	308			0			6,121
(Loss) income from continuing operations before income taxes and equity income of subsidiaries		(7,204		)	132,687			60,806			0			186,289
Income tax (benefit) expense		(2,772		)	41,796			15,940			0			54,964
Equity income of subsidiaries		136,277			0			0			(136,277		)	0
Income from continuing operations		131,845			90,891			44,866			(136,277		)	131,325
(Loss) income from operations of discontinued business, net of tax		0			0			520			0			520
Net income		131,845			90,891			45,386			(136,277		)	131,845
Other comprehensive income (loss)		(17,306		)	(3,105		)	(15,847		)	18,952			(17,306		)
Comprehensive income		$	114,539		$	87,786		$	29,539		$	(117,325	)	$	114,539
NewMarket Corporation and Subsidiaries
Consolidating Balance Sheets
30-Jun-14
(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
ASSETS
Cash and cash equivalents		$	38		$	3,443		$	110,163		$	0		$	113,644
Trade and other accounts receivable, net		1,714			109,668			236,248			0			347,630
Amounts due from affiliated companies		88,743			238,071			89,755			(416,569		)	0
Inventories		0			123,005			206,378			0			329,383
Deferred income taxes		2,590			3,313			443			0			6,346
Prepaid expenses and other current assets		12,721			20,496			2,812			0			36,029
Total current assets		105,806			497,996			645,799			(416,569		)	833,032
Amounts due from affiliated companies		0			112,289			8,025			(120,314		)	0
Property, plant, and equipment, at cost		0			701,212			302,307			0			1,003,519
Less accumulated depreciation and amortization		0			563,444			149,628			0			713,072
Net property, plant, and equipment		0			137,768			152,679			0			290,447
Investment in consolidated subsidiaries		906,161			0			0			(906,161		)	0
Prepaid pension cost		26,476			17,320			18,086			0			61,882
Deferred income taxes		20,756			0			7,158			(6,184		)	21,730
Intangibles (net of amortization) and goodwill		0			14,117			6,221			0			20,338
Deferred charges and other assets		34,509			9,129			1,283			0			44,921
Total assets		$	1,093,708		$	788,619		$	839,251		$	(1,449,228	)	$	1,272,350
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable		$	6		$	82,305		$	55,168		$	0		$	137,479
Accrued expenses		11,972			38,475			22,559			0			73,006
Dividends payable		12,578			0			0			0			12,578
Amounts due to affiliated companies		117,104			177,157			122,308			(416,569		)	0
Income taxes payable		0			384			11,588			0			11,972
Other current liabilities		0			7,927			3,096			0			11,023
Total current liabilities		141,660			306,248			214,719			(416,569		)	246,058
Long-term debt		353,497			0			0			0			353,497
Amounts due to affiliated companies		0			8,025			112,289			(120,314		)	0
Other noncurrent liabilities		85,054			41,537			38,891			(6,184		)	159,298
Total liabilities		580,211			355,810			365,899			(543,067		)	758,853
Shareholders' equity:
Common stock and paid-in capital		0			260,776			126,662			(387,438		)	0
Accumulated other comprehensive loss		(48,807		)	(3,792		)	(31,758		)	35,550			(48,807		)
Retained earnings		562,304			175,825			378,448			(554,273		)	562,304
Total shareholders' equity		513,497			432,809			473,352			(906,161		)	513,497
Total liabilities and shareholders' equity		$	1,093,708		$	788,619		$	839,251		$	(1,449,228	)	$	1,272,350
NewMarket Corporation and Subsidiaries
Consolidating Balance Sheets
31-Dec-13
(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
ASSETS
Cash and cash equivalents		$	1,038		$	102,205		$	135,460		$	0		$	238,703
Trade and other accounts receivable, net		1,512			108,908			199,431			(4		)	309,847
Amounts due from affiliated companies		0			139,710			77,098			(216,808		)	0
Inventories		0			115,442			192,076			0			307,518
Deferred income taxes		2,600			4,919			748			0			8,267
Prepaid expenses and other current assets		13,055			17,886			2,043			0			32,984
Total current assets		18,205			489,070			606,856			(216,812		)	897,319
Amounts due from affiliated companies		0			113,076			8,025			(121,101		)	0
Property, plant, and equipment, at cost		0			692,024			293,172			0			985,196
Less accumulated depreciation and amortization		0			555,805			144,355			0			700,160
Net property, plant, and equipment		0			136,219			148,817			0			285,036
Investment in consolidated subsidiaries		955,560			0			0			(955,560		)	0
Prepaid pension cost		23,276			16,092			15,719			0			55,087
Deferred income taxes		20,999			0			7,984			(6,022		)	22,961
Intangibles (net of amortization) and goodwill		0			17,036			6,283			0			23,319
Deferred charges and other assets		33,257			9,014			1,281			0			43,552
Total assets		$	1,051,297		$	780,507		$	794,965		$	(1,299,495	)	$	1,327,274
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable		$	6		$	86,649		$	47,477		$	0		$	134,132
Accrued expenses		10,788			46,401			20,803			0			77,992
Dividends payable		12,996			0			0			0			12,996
Amounts due to affiliated companies		23,183			77,098			116,527			(216,808		)	0
Income taxes payable		0			0			11,423			(4		)	11,419
Other current liabilities		0			7,828			3,247			0			11,075
Total current liabilities		46,973			217,976			199,477			(216,812		)	247,614
Long-term debt		349,467			0			0			0			349,467
Amounts due to affiliated companies		0			8,025			113,076			(121,101		)	0
Other noncurrent liabilities		82,409			41,014			40,344			(6,022		)	157,745
Total liabilities		478,849			267,015			352,897			(343,935		)	754,826
Shareholders' equity:
Common stock and paid-in capital		0			260,776			126,661			(387,437		)	0
Accumulated other comprehensive loss		(60,086		)	(5,786		)	(40,360		)	46,146			(60,086		)
Retained earnings		632,534			258,502			355,767			(614,269		)	632,534
Total shareholders' equity		572,448			513,492			442,068			(955,560		)	572,448
Total liabilities and shareholders' equity		$	1,051,297		$	780,507		$	794,965		$	(1,299,495	)	$	1,327,274
NewMarket Corporation and Subsidiaries
Condensed Consolidating Statements of Cash Flows
Six Months Ended June 30, 2014
(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
Cash provided from (used in) operating activities		$	190,441		$	105,299		$	4,626		$	(215,850	)	$	84,516
Cash flows from investing activities:
Capital expenditures		0			(11,942		)	(8,712		)	0			(20,654		)
Deposits for interest rate swap		(4,861		)	0			0			0			(4,861		)
Return of deposits for interest rate swap		2,930			0			0			0			2,930
Other, net		(2,485		)	0			0			0			(2,485		)
Cash provided from (used in) investing activities		(4,416		)	(11,942		)	(8,712		)	0			(25,070		)
Cash flows from financing activities:
Net borrowings (repayments) under revolving credit facility		4,000			0			0			0			4,000
Net (repayments) borrowings under lines of credit		0			0			(151		)	0			(151		)
Dividends paid		(28,155		)	(194,007		)	(20,147		)	214,154			(28,155		)
Repurchases of common stock		(162,867		)	0			0			0			(162,867		)
Issuance of intercompany note payable, net		0			(10,748		)	10,748			0			0
Repayment of intercompany note payable, net		0			14,329			(14,329		)	0			0
Financing from affiliated companies		(3		)	(1,693		)	0			1,696			0
Cash provided from (used in) financing activities		(187,025		)	(192,119		)	(23,879		)	215,850			(187,173		)
Effect of foreign exchange on cash and cash equivalents		0			0			2,668			0			2,668
(Decrease) increase in cash and cash equivalents		(1,000		)	(98,762		)	(25,297		)	0			(125,059		)
Cash and cash equivalents at beginning of year		1,038			102,205			135,460			0			238,703
Cash and cash equivalents at end of period		$	38		$	3,443		$	110,163		$	0		$	113,644
NewMarket Corporation and Subsidiaries
Condensed Consolidating Statements of Cash Flows
Six Months Ended June 30, 2013
(in thousands)		Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
Cash provided from (used in) operating activities		$	94,404		$	(45,219	)	$	32,525		$	41,196		$	122,906
Cash flows from investing activities:
Capital expenditures		0			(14,058		)	(17,791		)	0			(31,849		)
Deposits for interest rate swap		(7,762		)	0			0			0			(7,762		)
Return of deposits for interest rate swap		17,110			0			0			0			17,110
Other, net		(2,464		)	0			0			0			(2,464		)
Cash provided from (used in) investing activities		6,884			(14,058		)	(17,791		)	0			(24,965		)
Cash flows from financing activities:
Net borrowings (repayments) under revolving credit facility		(60,000		)	0			0			0			(60,000		)
Net (repayments) borrowings under lines of credit		0			0			3,404			0			3,404
Dividends paid		(23,980		)	(86,585		)	(9,916		)	96,501			(23,980		)
Debt issuance costs		(1,145		)	0			0			0			(1,145		)
Repurchases of common stock		(26,798		)	0			0			0			(26,798		)
Issuance of intercompany note payable, net		0			(4,207		)	4,207			0			0
Repayment of intercompany note payable, net		5,639			13,402			(19,041		)	0			0
Financing from affiliated companies		(2		)	137,699			0			(137,697		)	0
Cash provided from (used in) financing activities		(106,286		)	60,309			(21,346		)	(41,196		)	(108,519		)
Effect of foreign exchange on cash and cash equivalents		0			0			(5,006		)	0			(5,006		)
(Decrease) increase in cash and cash equivalents		(4,998		)	1,032			(11,618		)	0			(15,584		)
Cash and cash equivalents at beginning of year		5,001			3,956			80,172			0			89,129
Cash and cash equivalents at end of period		$	3		$	4,988		$	68,554		$	0		$	73,545

Recently_Issued_Accounting_Pro

Recently Issued Accounting Pronouncements	6 Months Ended
	Jun. 30, 2014
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
Recently Issued Accounting Pronouncements	'
	Recently Issued Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (ASU 2014-09). ASU 2014-09 replaces the previous guidance and clarifies the principles for revenue recognition. It requires a five-step process for revenue recognition that represents the transfer of goods or services to customers in an amount that reflects the consideration expected to be received by a company. ASU 2014-09 also requires enhanced disclosures regarding the nature, amount, timing, and uncertainty of revenues and cash flows from contracts with customers. ASU 2014-09 is effective for reporting periods beginning after December 15, 2016, and early adoption is prohibited. Entities can transition to the standard either retrospectively or as a cumulative-effect adjustment as of the date of adoption. We are currently assessing the impact that the adoption of ASU 2014-09 will have on our consolidated financial statements.

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Policies)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives offsetting fair value amounts policy	'
	We have made an accounting policy election to not offset derivative fair value amounts with the fair value amounts for the right to reclaim cash collateral under our master netting arrangement.

Fair_Value_Measurements_Policy

Fair Value Measurements (Policy)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	We determine the fair value of derivative instruments shown in the table above by using widely-accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of the instrument. The analysis reflects the contractual term of the derivative, including the period to maturity, and uses observable market-based inputs.
	The fair value of the interest rate swap is determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments are based on an expectation of future interest rates derived from observable market interest rate curves. In determining the fair value measurements, we incorporate credit valuation adjustments to appropriately reflect both our nonperformance risk and the counterparties’ nonperformance risk.
	Although we have determined that the majority of the inputs used to value our derivative fall within Level 2 of the fair value hierarchy, the credit valuation adjustment associated with the derivative utilizes Level 3 inputs. These Level 3 inputs include estimates of current credit spreads to evaluate the likelihood of default by both us and the counterparties to the derivative. As of June 30, 2014 and December 31, 2013, we have assessed the significance of the impact of the credit valuation adjustment on the overall valuation of our derivative and have determined that the credit valuation adjustment is not significant to the overall valuation of the derivative. Accordingly, we have determined that our derivative valuation should be classified in Level 2 of the fair value hierarchy.
	We have made an accounting policy election to measure credit risk of any derivative financial instruments subject to master netting agreements on a net basis by counterparty portfolio.
Long-Term Debt	'
	We record the value of our long-term debt at historical cost.

Discontinued_Operations_Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Schedule of Components of (Loss) Income From Operations of Discontinued Business	'
	The components of (loss) income from operations of discontinued business, net of tax, were as follows:
	(in thousands)	Second Quarter Ended June 30, 2013			Six Months Ended June 30, 2013
	Rental revenue	$	2,858		$	5,716
	Cost of rental	1,068			2,136
	Interest, financing, and other expenses, net	2,401			2,728
	(Loss) income before income tax expense	(611		)	852
	Income tax (benefit) expense	(237		)	332
	(Loss) income from operations of discontinued business, net of tax	$	(374	)	$	520

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Consolidated Revenue by Segment	'
	Consolidated Revenue by Segment
			Second Quarter Ended						Six Months Ended
			June 30,						June 30,
	(in thousands)		2014			2013			2014			2013
	Petroleum additives
	Lubricant additives		$	513,421		$	475,112		$	986,770		$	927,784
	Fuel additives		104,084			106,227			204,780			211,955
	Total		617,505			581,339			1,191,550			1,139,739
	All other		2,933			2,440			5,310			3,790
	Consolidated revenue		$	620,438		$	583,779		$	1,196,860		$	1,143,529
Segment Operating Profit	'
	Segment Operating Profit
			Second Quarter Ended						Six Months Ended
			June 30,						June 30,
	(in thousands)		2014			2013			2014			2013
	Petroleum additives		$	109,089		$	97,790		$	205,268		$	199,818
	All other		858			183			1,393			(218		)
	Segment operating profit		109,947			97,973			206,661			199,600
	Corporate, general, and administrative expenses		(5,575		)	(5,189		)	(12,128		)	(10,405		)
	Interest and financing expenses, net		(4,346		)	(4,573		)	(8,510		)	(9,355		)
	Gain (loss) on interest rate swap agreement (a)		(2,270		)	5,098			(4,503		)	5,775
	Other income, net		161			570			192			674
	Income from continuing operations before income tax expense		$	97,917		$	93,879		$	181,712		$	186,289
	(a)	The gain (loss) on interest rate swap agreement represents the change, since the beginning of the reporting period, in the fair value of an interest rate swap which we entered into on June 25, 2009. We are not using hedge accounting to record the interest rate swap, and accordingly, any change in the fair value is immediately recognized in earnings.

Pension_Plans_and_Other_Postre1

Pension Plans and Other Postretirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]	'
Cash Contributions Made And Expected Remaining Contributions For Domestic And Foreign Pension And Postretirement Benefit Plans	'
	The table below shows cash contributions made during the six months ended June 30, 2014, as well as the remaining cash contributions we expect to make during the year ending December 31, 2014 for both our domestic and foreign pension plans and postretirement benefit plans.
	(in thousands)	Actual Cash Contributions for Six Months Ended June 30, 2014			Expected Remaining Cash Contributions for Year Ending December 31, 2014
	Domestic plans
	Pension benefits	$	6,325		$	8,750
	Postretirement benefits	645			645
	Foreign plans
	Pension benefits	3,383			3,471
	Postretirement benefits	54			0
Domestic [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Net Periodic Benefit Cost For Pension And Postretirement Benefit Plans	'
	The tables below present information on net periodic benefit cost for our pension and postretirement benefit plans.
		Domestic
		Pension Benefits						Postretirement Benefits
		Second Quarter Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	2,388		$	2,664		$	405		$	499
	Interest cost	2,737			2,383			690			681
	Expected return on plan assets	(4,331		)	(3,617		)	(328		)	(364		)
	Amortization of prior service cost	25			4			3			3
	Amortization of actuarial net loss (gain)	978			1,801			(176		)	0
	Net periodic benefit cost (income)	$	1,797		$	3,235		$	594		$	819
		Domestic
		Pension Benefits						Postretirement Benefits
		Six Months Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	4,775		$	5,327		$	810		$	998
	Interest cost	5,475			4,767			1,382			1,363
	Expected return on plan assets	(8,661		)	(7,234		)	(656		)	(728		)
	Amortization of prior service cost	50			8			5			5
	Amortization of actuarial net loss (gain)	1,955			3,602			(353		)	0
	Net periodic benefit cost (income)	$	3,594		$	6,470		$	1,188		$	1,638
Foreign [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Net Periodic Benefit Cost For Pension And Postretirement Benefit Plans	'
		Foreign
		Pension Benefits						Postretirement Benefits
		Second Quarter Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	1,506		$	1,321		$	1		$	8
	Interest cost	1,569			1,324			17			26
	Expected return on plan assets	(2,098		)	(1,686		)	0			0
	Amortization of prior service credit	(26		)	(2		)	0			0
	Amortization of transition obligation	0			0			2			13
	Amortization of actuarial net loss	286			346			3			10
	Settlements and curtailments	0			133			(122		)	71
	Net periodic benefit cost (income)	$	1,237		$	1,436		$	(99	)	$	128
		Foreign
		Pension Benefits						Postretirement Benefits
		Six Months Ended June 30,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	3,001		$	2,675		$	3		$	16
	Interest cost	3,124			2,681			41			53
	Expected return on plan assets	(4,177		)	(3,415		)	0			0
	Amortization of prior service credit	(52		)	(4		)	0			0
	Amortization of transition obligation	0			0			5			26
	Amortization of actuarial net loss	570			700			8			20
	Settlements and curtailments	0			133			(122		)	71
	Net periodic benefit cost (income)	$	2,466		$	2,770		$	(65	)	$	186

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Calculated Basic and Diluted Earnings Per Share From Continuing Operations	'
	The following table illustrates the earnings allocation method utilized in the calculation of basic and diluted earnings per share from continuing operations.
		Second Quarter Ended				Six Months Ended
		June 30,				June 30,
	(in thousands, except per-share amounts)	2014		2013		2014		2013
	Earnings per share from continuing operations numerator:
	Income from continuing operations attributable to common shareholders before allocation of earnings to participating securities	$	66,764	$	64,384	$	124,287	$	131,325
	Income from continuing operations allocated to participating securities	102		44		192		105
	Income from continuing operations attributable to common shareholders after allocation of earnings to participating securities	$	66,662	$	64,340	$	124,095	$	131,220
	Earnings per share from continuing operations denominator:
	Weighted-average number of shares of common stock outstanding - basic and diluted	12,732		13,303		12,842		13,340
	Earnings per share from continuing operations - basic and diluted	$	5.24	$	4.84	$	9.66	$	9.84

Intangibles_Net_of_Amortizatio1

Intangibles (Net of Amortization) and Goodwill (Tables)	6 Months Ended
	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule Of Information Related To Identifiable Intangibles	'
			Identifiable Intangibles
			June 30, 2014				December 31, 2013
	(in thousands)		Gross		Accumulated		Gross		Accumulated
			Carrying		Amortization		Carrying		Amortization
			Amount				Amount
	Amortizing intangible assets
	Formulas and technology		$	88,970	$	79,635	$	88,917	$	77,217
	Contracts		7,127		5,973		7,127		5,528
	Customer bases		7,026		3,126		7,012		2,918
	Trademarks and trade names		1,600		690		1,591		610
	Goodwill		5,039				4,945
			$	109,762	$	89,424	$	109,592	$	86,273
Schedule Of Amortization Expense	'
	Amortization expense was (in thousands):
	Second quarter ended June 30, 2014	$	1,576
	Six months ended June 30, 2014	3,151
	Second quarter ended June 30, 2013	1,864
	Six months ended June 30, 2013	3,728
Schedule Of Estimated Annual Amortization Expense Related To Intangible Assets	'
	Estimated amortization expense for the remainder of 2014, as well as annual amortization expense related to our intangible assets for the next five years is expected to be (in thousands):
	2014	$	3,012
	2015	5,790
	2016	1,910
	2017	746
	2018	715
	2019	688

Longterm_Debt_Tables

Long-term Debt (Tables)	6 Months Ended
	Jun. 30, 2014
Long-term Debt and Capital Lease Obligations [Abstract]	'
Schedule Of Long-Term Debt	'
	(in thousands)	June 30,		December 31,
		2014		2013
	Senior notes - 4.10% due 2022	$	349,497	$	349,467
	Revolving credit facility	4,000		0
		$	353,497	$	349,467
Schedule Of Unused Portion Of Revolving Credit Facility	'
	The following table provides information related to the unused portion of our revolving credit facility:
	(in thousands)	June 30,		December 31,
		2014		2013
	Maximum borrowing capacity under the revolving credit facility	$	650,000	$	650,000
	Outstanding borrowings under the revolving credit facility	4,000		0
	Outstanding letters of credit	3,100		3,100
	Unused portion of revolving credit facility	$	642,900	$	646,900

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

'

Fair Value of Derivative Instruments

'

The table below presents the fair value of our derivative financial instruments, as well as their classification on the Consolidated Balance Sheets.

Liability Derivatives

June 30, 2014

December 31, 2013

(in thousands)

Balance

Fair Value

Balance

Fair Value

Sheet

Sheet

Location

Location

Derivatives Not Designated as Hedging Instruments

Goldman Sachs interest rate swap

Accrued expenses and Other noncurrent liabilities

$

23,229

Accrued expenses and Other noncurrent liabilities

$

21,211

Effect of Derivative Instruments on the Consolidated Statements of Income Non-Designated Derivatives

'

The following table presents the effect of our derivative financial instruments on the Consolidated Statements of Income.

Effect of Derivative Instruments on the Consolidated Statements of Income

Non-Designated Derivatives

(in thousands)

Derivatives Not Designated as Hedging Instruments

Location of Gain (Loss) Recognized in

Amount of Gain (Loss) Recognized in

Income on Derivatives

Income on Derivatives

Second Quarter Ended

Six Months Ended

June 30,

June 30,

2014

2013

2014

2013

Goldman Sachs interest rate swap

Other (expense) income, net

$

(2,270

)

$

5,097

$

(4,503

)

$

5,775

Other_Comprehensive_Income_Los1

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule of Components of Accumulated Other Comprehensive Loss, Net of Tax	'
	The balances of, and changes in, the components of accumulated other comprehensive loss, net of tax, consist of the following:
	(in thousands)	Pension Plans			Derivative Instruments			Foreign Currency Translation Adjustments			Accumulated Other
		and Other Postretirement Benefits									Comprehensive (Loss) Income
	Balance at December 31, 2012	$	(96,139	)	$	(4,173	)	$	(10,377	)	$	(110,689	)
	Other comprehensive income (loss) before reclassifications	285			0			(22,410		)	(22,125		)
	Amounts reclassified from accumulated other comprehensive loss	3,127			1,692			0			4,819
	Other comprehensive income (loss)	3,412			1,692			(22,410		)	(17,306		)
	Balance at June 30, 2013	$	(92,727	)	$	(2,481	)	$	(32,787	)	$	(127,995	)
	Balance at December 31, 2013	$	(44,493	)	$	0		$	(15,593	)	$	(60,086	)
	Other comprehensive income (loss) before reclassifications	(90		)	0			9,560			9,470
	Amounts reclassified from accumulated other comprehensive loss	1,809			0			0			1,809
	Other comprehensive income (loss)	1,719			0			9,560			11,279
	Balance at June 30, 2014	$	(42,774	)	$	0		$	(6,033	)	$	(48,807	)
Schedule of Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Loss	'
	The following table illustrates the amounts, net of tax, reclassified out of each component of accumulated other comprehensive loss and their location within the respective line items on the Consolidated Statements of Income.
	(in thousands)	Amount Reclassified from Accumulated Other Comprehensive Loss
	Accumulated Other Comprehensive Loss Component	Second Quarter Ended						Six Months Ended						Affected Line Item on the Consolidated Statements of Income
		June 30,						June 30,
		2014			2013			2014			2013
	Pension plans and other postretirement benefits:
	Amortization of prior service (credit) cost	$	(3	)	$	3		$	(6	)	$	5		(a)
	Amortization of actuarial net loss	705			1,362			1,412			2,725			(a)
	Settlements and curtailments	399			378			399			378			(a)
	Amortization of transition obligation	2			9			4			19			(a)
	Total pension plans and other postretirement benefits	1,103			1,752			1,809			3,127
	Derivative instruments:
	Amortization of mortgage loan interest rate swap	0			1,466			0			1,666			(Loss) income from operations of discontinued business, net of tax (b)
	Amortization of construction loan interest rate swap	0			13			0			26			(Loss) income from operations of discontinued business, net of tax (b)
	Total derivative instruments	0			1,479			0			1,692
	Total reclassifications for the period	$	1,103		$	3,231		$	1,809		$	4,819
	(a) These components of accumulated other comprehensive loss are included in the computation of net periodic benefit cost (income). See Note 4 in this Form 10-Q and Note 18 in our 2013 Annual Report for further information.
	(b) Amounts relate to the Foundry Park I mortgage loan interest rate swap and the construction loan interest rate swap. Amounts are presented net of income tax expense of $934 thousand for the mortgage loan interest rate swap and $8 thousand for the construction loan interest rate swap for the second quarter ended June 30, 2013 and $1.1 million for the mortgage loan interest rates swap and $16 thousand for the construction loan interest rate swap for the six months ended June 30, 2013. Due to the sale of the real estate assets of Foundry Park I in July 2013, the amounts recorded in accumulated other comprehensive loss for both interest rate swaps were completely recognized in the Consolidated Statements of Income in 2013.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Assets And Liabilities Measured At Fair Value On A Recurring Basis	'
		Carrying Amount in Consolidated Balance Sheets				Fair Value Measurements Using
				Fair Value		Level 1		Level 2		Level 3
	(in thousands)	June 30, 2014
	Cash and cash equivalents	$	113,644	$	113,644	$	113,644	$	0	$	0
	Cash deposit for collateralized interest rate swap	27,770		27,770		27,770		0		0
	Interest rate swap liability	23,229		23,229		0		23,229		0
		December 31, 2013
	Cash and cash equivalents	$	238,703	$	238,703	$	238,703	$	0	$	0
	Cash deposit for collateralized interest rate swap	25,839		25,839		25,839		0		0
	Interest rate swap liability	21,211		21,211		0		21,211		0
Estimated Fair Value Of Long-Term Debt	'
		June 30, 2014				December 31, 2013
	(in thousands)	Carrying		Fair		Carrying		Fair
		Amount		Value		Amount		Value
	Long-term debt	$	353,497	$	375,319	$	349,467	$	345,283

Consolidating_Financial_Inform1

Consolidating Financial Information (Tables)	6 Months Ended
	Jun. 30, 2014
Consolidating Financial Information [Abstract]	'
Schedule Of Consolidating Statements Of Income And Comprehensive Income	'
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Second Quarter Ended June 30, 2014
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales	$	0		$	239,631		$	380,807		$	0		$	620,438
	Cost of goods sold	0			117,140			322,552			0			439,692
	Gross profit	0			122,491			58,255			0			180,746
	Selling, general, and administrative expenses	1,609			22,131			17,173			0			40,913
	Research, development, and testing expenses	0			25,604			9,763			0			35,367
	Operating (loss) profit	(1,609		)	74,756			31,319			0			104,466
	Interest and financing expenses, net	4,535			(1,028		)	839			0			4,346
	Other (expense) income, net	(2,260		)	(36		)	93			0			(2,203		)
	(Loss) income before income taxes and equity income of subsidiaries	(8,404		)	75,748			30,573			0			97,917
	Income tax (benefit) expense	(3,505		)	27,556			7,102			0			31,153
	Equity income of subsidiaries	71,663			0			0			(71,663		)	0
	Net income	66,764			48,192			23,471			(71,663		)	66,764
	Other comprehensive income (loss)	9,548			1,448			7,758			(9,206		)	9,548
	Comprehensive income	$	76,312		$	49,640		$	31,229		$	(80,869	)	$	76,312
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Second Quarter Ended June 30, 2013
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales	$	0		$	233,955		$	349,824		$	0		$	583,779
	Cost of goods sold	0			122,851			291,500			0			414,351
	Gross profit	0			111,104			58,324			0			169,428
	Selling, general, and administrative expenses	1,779			22,059			16,083			0			39,921
	Research, development, and testing expenses	0			24,104			12,325			0			36,429
	Operating (loss) profit	(1,779		)	64,941			29,916			0			93,078
	Interest and financing expenses, net	4,749			(1,072		)	896			0			4,573
	Other (expense) income, net	5,118			(1		)	257			0			5,374
	(Loss) income from continuing operations before income taxes and equity income of subsidiaries	(1,410		)	66,012			29,277			0			93,879
	Income tax (benefit) expense	(759		)	16,898			13,356			0			29,495
	Equity income of subsidiaries	64,661			0			0			(64,661		)	0
	Income from continuing operations	64,010			49,114			15,921			(64,661		)	64,384
	(Loss) income from operations of discontinued business, net of tax	0			0			(374		)	0			(374		)
	Net income	64,010			49,114			15,547			(64,661		)	64,010
	Other comprehensive income (loss)	(614		)	665			(2,102		)	1,437			(614		)
	Comprehensive income	$	63,396		$	49,779		$	13,445		$	(63,224	)	$	63,396
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Six Months Ended June 30, 2014
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales	$	0		$	447,905		$	748,955		$	0		$	1,196,860
	Cost of goods sold	0			218,814			635,370			0			854,184
	Gross profit	0			229,091			113,585			0			342,676
	Selling, general, and administrative expenses	3,338			43,010			34,113			0			80,461
	Research, development, and testing expenses	0			47,634			19,940			0			67,574
	Operating (loss) profit	(3,338		)	138,447			59,532			0			194,641
	Interest and financing expenses, net	8,883			(2,010		)	1,637			0			8,510
	Other (expense) income, net	(4,492		)	(61		)	134			0			(4,419		)
	(Loss) income before income taxes and equity income of subsidiaries	(16,713		)	140,396			58,029			0			181,712
	Income tax (benefit) expense	(6,984		)	49,207			15,202			0			57,425
	Equity income of subsidiaries	134,016			0			0			(134,016		)	0
	Net income	124,287			91,189			42,827			(134,016		)	124,287
	Other comprehensive income (loss)	11,279			1,993			8,602			(10,595		)	11,279
	Comprehensive income	$	135,566		$	93,182		$	51,429		$	(144,611	)	$	135,566
	NewMarket Corporation and Subsidiaries
	Consolidating Statements of Income and Comprehensive Income
	Six Months Ended June 30, 2013
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Net sales	$	0		$	454,020		$	689,509		$	0		$	1,143,529
	Cost of goods sold	0			234,145			571,549			0			805,694
	Gross profit	0			219,875			117,960			0			337,835
Selling, general, and administrative expenses	3,464			43,135			34,263			0			80,862
Research, development, and testing expenses	0			46,057			21,393			0			67,450
Operating (loss) profit	(3,464		)	130,683			62,304			0			189,523
Interest and financing expenses, net	9,559			(2,010		)	1,806			0			9,355
Other (expense) income, net	5,819			(6		)	308			0			6,121
(Loss) income from continuing operations before income taxes and equity income of subsidiaries	(7,204		)	132,687			60,806			0			186,289
Income tax (benefit) expense	(2,772		)	41,796			15,940			0			54,964
Equity income of subsidiaries	136,277			0			0			(136,277		)	0
Income from continuing operations	131,845			90,891			44,866			(136,277		)	131,325
(Loss) income from operations of discontinued business, net of tax	0			0			520			0			520
Net income	131,845			90,891			45,386			(136,277		)	131,845
Other comprehensive income (loss)	(17,306		)	(3,105		)	(15,847		)	18,952			(17,306		)
Comprehensive income	$	114,539		$	87,786		$	29,539		$	(117,325	)	$	114,539
Schedule of Consolidating Balance Sheets	'
	NewMarket Corporation and Subsidiaries
	Consolidating Balance Sheets
	30-Jun-14
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	ASSETS
	Cash and cash equivalents	$	38		$	3,443		$	110,163		$	0		$	113,644
	Trade and other accounts receivable, net	1,714			109,668			236,248			0			347,630
	Amounts due from affiliated companies	88,743			238,071			89,755			(416,569		)	0
	Inventories	0			123,005			206,378			0			329,383
	Deferred income taxes	2,590			3,313			443			0			6,346
	Prepaid expenses and other current assets	12,721			20,496			2,812			0			36,029
	Total current assets	105,806			497,996			645,799			(416,569		)	833,032
	Amounts due from affiliated companies	0			112,289			8,025			(120,314		)	0
	Property, plant, and equipment, at cost	0			701,212			302,307			0			1,003,519
	Less accumulated depreciation and amortization	0			563,444			149,628			0			713,072
	Net property, plant, and equipment	0			137,768			152,679			0			290,447
	Investment in consolidated subsidiaries	906,161			0			0			(906,161		)	0
	Prepaid pension cost	26,476			17,320			18,086			0			61,882
	Deferred income taxes	20,756			0			7,158			(6,184		)	21,730
	Intangibles (net of amortization) and goodwill	0			14,117			6,221			0			20,338
	Deferred charges and other assets	34,509			9,129			1,283			0			44,921
	Total assets	$	1,093,708		$	788,619		$	839,251		$	(1,449,228	)	$	1,272,350
	LIABILITIES AND SHAREHOLDERS' EQUITY
	Accounts payable	$	6		$	82,305		$	55,168		$	0		$	137,479
	Accrued expenses	11,972			38,475			22,559			0			73,006
	Dividends payable	12,578			0			0			0			12,578
	Amounts due to affiliated companies	117,104			177,157			122,308			(416,569		)	0
	Income taxes payable	0			384			11,588			0			11,972
	Other current liabilities	0			7,927			3,096			0			11,023
	Total current liabilities	141,660			306,248			214,719			(416,569		)	246,058
	Long-term debt	353,497			0			0			0			353,497
	Amounts due to affiliated companies	0			8,025			112,289			(120,314		)	0
	Other noncurrent liabilities	85,054			41,537			38,891			(6,184		)	159,298
	Total liabilities	580,211			355,810			365,899			(543,067		)	758,853
	Shareholders' equity:
	Common stock and paid-in capital	0			260,776			126,662			(387,438		)	0
	Accumulated other comprehensive loss	(48,807		)	(3,792		)	(31,758		)	35,550			(48,807		)
	Retained earnings	562,304			175,825			378,448			(554,273		)	562,304
	Total shareholders' equity	513,497			432,809			473,352			(906,161		)	513,497
	Total liabilities and shareholders' equity	$	1,093,708		$	788,619		$	839,251		$	(1,449,228	)	$	1,272,350
	NewMarket Corporation and Subsidiaries
	Consolidating Balance Sheets
	31-Dec-13
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	ASSETS
	Cash and cash equivalents	$	1,038		$	102,205		$	135,460		$	0		$	238,703
	Trade and other accounts receivable, net	1,512			108,908			199,431			(4		)	309,847
	Amounts due from affiliated companies	0			139,710			77,098			(216,808		)	0
	Inventories	0			115,442			192,076			0			307,518
	Deferred income taxes	2,600			4,919			748			0			8,267
	Prepaid expenses and other current assets	13,055			17,886			2,043			0			32,984
	Total current assets	18,205			489,070			606,856			(216,812		)	897,319
	Amounts due from affiliated companies	0			113,076			8,025			(121,101		)	0
	Property, plant, and equipment, at cost	0			692,024			293,172			0			985,196
	Less accumulated depreciation and amortization	0			555,805			144,355			0			700,160
	Net property, plant, and equipment	0			136,219			148,817			0			285,036
	Investment in consolidated subsidiaries	955,560			0			0			(955,560		)	0
	Prepaid pension cost	23,276			16,092			15,719			0			55,087
	Deferred income taxes	20,999			0			7,984			(6,022		)	22,961
	Intangibles (net of amortization) and goodwill	0			17,036			6,283			0			23,319
	Deferred charges and other assets	33,257			9,014			1,281			0			43,552
	Total assets	$	1,051,297		$	780,507		$	794,965		$	(1,299,495	)	$	1,327,274
	LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	$	6		$	86,649		$	47,477		$	0		$	134,132
Accrued expenses	10,788			46,401			20,803			0			77,992
Dividends payable	12,996			0			0			0			12,996
Amounts due to affiliated companies	23,183			77,098			116,527			(216,808		)	0
Income taxes payable	0			0			11,423			(4		)	11,419
Other current liabilities	0			7,828			3,247			0			11,075
Total current liabilities	46,973			217,976			199,477			(216,812		)	247,614
Long-term debt	349,467			0			0			0			349,467
Amounts due to affiliated companies	0			8,025			113,076			(121,101		)	0
Other noncurrent liabilities	82,409			41,014			40,344			(6,022		)	157,745
Total liabilities	478,849			267,015			352,897			(343,935		)	754,826
Shareholders' equity:
Common stock and paid-in capital	0			260,776			126,661			(387,437		)	0
Accumulated other comprehensive loss	(60,086		)	(5,786		)	(40,360		)	46,146			(60,086		)
Retained earnings	632,534			258,502			355,767			(614,269		)	632,534
Total shareholders' equity	572,448			513,492			442,068			(955,560		)	572,448
Total liabilities and shareholders' equity	$	1,051,297		$	780,507		$	794,965		$	(1,299,495	)	$	1,327,274
Schedule Of Condensed Consolidating Statements Of Cash Flows	'
	NewMarket Corporation and Subsidiaries
	Condensed Consolidating Statements of Cash Flows
	Six Months Ended June 30, 2014
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Cash provided from (used in) operating activities	$	190,441		$	105,299		$	4,626		$	(215,850	)	$	84,516
	Cash flows from investing activities:
	Capital expenditures	0			(11,942		)	(8,712		)	0			(20,654		)
	Deposits for interest rate swap	(4,861		)	0			0			0			(4,861		)
	Return of deposits for interest rate swap	2,930			0			0			0			2,930
	Other, net	(2,485		)	0			0			0			(2,485		)
	Cash provided from (used in) investing activities	(4,416		)	(11,942		)	(8,712		)	0			(25,070		)
	Cash flows from financing activities:
	Net borrowings (repayments) under revolving credit facility	4,000			0			0			0			4,000
	Net (repayments) borrowings under lines of credit	0			0			(151		)	0			(151		)
	Dividends paid	(28,155		)	(194,007		)	(20,147		)	214,154			(28,155		)
	Repurchases of common stock	(162,867		)	0			0			0			(162,867		)
	Issuance of intercompany note payable, net	0			(10,748		)	10,748			0			0
	Repayment of intercompany note payable, net	0			14,329			(14,329		)	0			0
	Financing from affiliated companies	(3		)	(1,693		)	0			1,696			0
	Cash provided from (used in) financing activities	(187,025		)	(192,119		)	(23,879		)	215,850			(187,173		)
	Effect of foreign exchange on cash and cash equivalents	0			0			2,668			0			2,668
	(Decrease) increase in cash and cash equivalents	(1,000		)	(98,762		)	(25,297		)	0			(125,059		)
	Cash and cash equivalents at beginning of year	1,038			102,205			135,460			0			238,703
	Cash and cash equivalents at end of period	$	38		$	3,443		$	110,163		$	0		$	113,644
	NewMarket Corporation and Subsidiaries
	Condensed Consolidating Statements of Cash Flows
	Six Months Ended June 30, 2013
	(in thousands)	Parent Company			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Total Consolidating Adjustments			Consolidated
	Cash provided from (used in) operating activities	$	94,404		$	(45,219	)	$	32,525		$	41,196		$	122,906
	Cash flows from investing activities:
	Capital expenditures	0			(14,058		)	(17,791		)	0			(31,849		)
	Deposits for interest rate swap	(7,762		)	0			0			0			(7,762		)
	Return of deposits for interest rate swap	17,110			0			0			0			17,110
	Other, net	(2,464		)	0			0			0			(2,464		)
	Cash provided from (used in) investing activities	6,884			(14,058		)	(17,791		)	0			(24,965		)
	Cash flows from financing activities:
	Net borrowings (repayments) under revolving credit facility	(60,000		)	0			0			0			(60,000		)
	Net (repayments) borrowings under lines of credit	0			0			3,404			0			3,404
	Dividends paid	(23,980		)	(86,585		)	(9,916		)	96,501			(23,980		)
	Debt issuance costs	(1,145		)	0			0			0			(1,145		)
	Repurchases of common stock	(26,798		)	0			0			0			(26,798		)
	Issuance of intercompany note payable, net	0			(4,207		)	4,207			0			0
	Repayment of intercompany note payable, net	5,639			13,402			(19,041		)	0			0
	Financing from affiliated companies	(2		)	137,699			0			(137,697		)	0
	Cash provided from (used in) financing activities	(106,286		)	60,309			(21,346		)	(41,196		)	(108,519		)
	Effect of foreign exchange on cash and cash equivalents	0			0			(5,006		)	0			(5,006		)
	(Decrease) increase in cash and cash equivalents	(4,998		)	1,032			(11,618		)	0			(15,584		)
	Cash and cash equivalents at beginning of year	5,001			3,956			80,172			0			89,129
	Cash and cash equivalents at end of period	$	3		$	4,988		$	68,554		$	0		$	73,545

Discontinued_Operations_Narrat

Discontinued Operations (Narrative) (Details) (Real Estate Assets Of Foundry Park I [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Jul. 02, 2013
Real Estate Assets Of Foundry Park I [Member]	'	'
Discontinued Operations [Line Items]	'	'
Sales price of discontinued operation	'	$144
Gain on sale of real estate assets, before tax	36	'
Gain on sale of real estate assets, net of tax	$22	'

Discontinued_Operations_Schedu

Discontinued Operations (Schedule of Components of Income From Operations of Discontinued Business) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]	'	'	'	'
Rental revenue	'	$2,858	'	$5,716
Cost of rental	'	1,068	'	2,136
Interest, financing, and other expenses, net	'	2,401	'	2,728
(Loss) income before income tax expense	'	-611	'	852
Income tax (benefit) expense	'	-237	'	332
(Loss) income from operations of discontinued business, net of tax	$0	($374)	$0	$520

Segment_Information_Consolidat

Segment Information (Consolidated Revenue By Segment) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Information [Line Items]	'	'	'	'
Consolidated revenue	$620,438	$583,779	$1,196,860	$1,143,529
Petroleum Additives [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Consolidated revenue	617,505	581,339	1,191,550	1,139,739
All Other [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Consolidated revenue	2,933	2,440	5,310	3,790
Lubricant Additives [Member] | Petroleum Additives [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Consolidated revenue	513,421	475,112	986,770	927,784
Fuel Additives [Member] | Petroleum Additives [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Consolidated revenue	$104,084	$106,227	$204,780	$211,955

Segment_Information_Segment_Op

Segment Information (Segment Operating Profit) (Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Segment Information [Line Items]	'		'		'		'
Segment operating profit	$104,466		$93,078		$194,641		$189,523
Corporate, general, and administrative expenses	-40,913		-39,921		-80,461		-80,862
Interest and financing expenses, net	-4,346		-4,573		-8,510		-9,355
Gain (loss) on interest rate swap agreement	-2,270	[1]	5,098	[1]	-4,503	[1]	5,775	[1]
Other income, net	161		570		192		674
Income from continuing operations before income tax expense	97,917		93,879		181,712		186,289
Petroleum Additives [Member]	'		'		'		'
Segment Information [Line Items]	'		'		'		'
Segment operating profit	109,089		97,790		205,268		199,818
All Other [Member]	'		'		'		'
Segment Information [Line Items]	'		'		'		'
Segment operating profit	858		183		1,393		-218
Operating Segments [Member]	'		'		'		'
Segment Information [Line Items]	'		'		'		'
Segment operating profit	109,947		97,973		206,661		199,600
Corporate, Non-Segment [Member]	'		'		'		'
Segment Information [Line Items]	'		'		'		'
Corporate, general, and administrative expenses	($5,575)		($5,189)		($12,128)		($10,405)
[1]	The gain (loss) on interest rate swap agreement represents the change, since the beginning of the reporting period, in the fair value of an interest rate swap which we entered into on June 25, 2009. We are not using hedge accounting to record the interest rate swap, and accordingly, any change in the fair value is immediately recognized in earnings.

Pension_Plans_and_Other_Postre2

Pension Plans and Other Postretirement Benefits (Cash Contributions Made And Expected Remaining Contributions For Domestic And Foreign Pension And Postretirement Benefit Plans) (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]	'	'
Actual Cash Contributions, Pension benefits	$9,708	$15,685
Actual Cash Contributions, Postretirement benefits	699	872
Domestic Pension Benefits [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Actual Cash Contributions, Pension benefits	6,325	'
Expected Remaining Cash Contributions	8,750	'
Domestic Postretirement Benefits [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Actual Cash Contributions, Postretirement benefits	645	'
Expected Remaining Cash Contributions	645	'
Foreign Pension Benefits [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Actual Cash Contributions, Pension benefits	3,383	'
Expected Remaining Cash Contributions	3,471	'
Foreign Postretirement Benefits [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Actual Cash Contributions, Postretirement benefits	54	'
Expected Remaining Cash Contributions	$0	'

Pension_Plans_and_Other_Postre3

Pension Plans and Other Postretirement Benefits (Net Periodic Benefit Cost For Pension And Postretirement Benefit Plans) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Domestic Pension Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	$2,388	$2,664	$4,775	$5,327
Interest cost	2,737	2,383	5,475	4,767
Expected return on plan assets	-4,331	-3,617	-8,661	-7,234
Amortization of prior service (credit) cost	25	4	50	8
Amortization of actuarial net loss (gain)	978	1,801	1,955	3,602
Net periodic benefit cost (income)	1,797	3,235	3,594	6,470
Domestic Postretirement Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	405	499	810	998
Interest cost	690	681	1,382	1,363
Expected return on plan assets	-328	-364	-656	-728
Amortization of prior service (credit) cost	3	3	5	5
Amortization of actuarial net loss (gain)	-176	0	-353	0
Net periodic benefit cost (income)	594	819	1,188	1,638
Foreign Pension Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	1,506	1,321	3,001	2,675
Interest cost	1,569	1,324	3,124	2,681
Expected return on plan assets	-2,098	-1,686	-4,177	-3,415
Amortization of prior service (credit) cost	-26	-2	-52	-4
Amortization of transition obligation	0	0	0	0
Amortization of actuarial net loss (gain)	286	346	570	700
Settlements and curtailments	0	133	0	133
Net periodic benefit cost (income)	1,237	1,436	2,466	2,770
Foreign Postretirement Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	1	8	3	16
Interest cost	17	26	41	53
Expected return on plan assets	0	0	0	0
Amortization of prior service (credit) cost	0	0	0	0
Amortization of transition obligation	2	13	5	26
Amortization of actuarial net loss (gain)	3	10	8	20
Settlements and curtailments	-122	71	-122	71
Net periodic benefit cost (income)	($99)	$128	($65)	$186

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Shares of nonvested restricted stock (in shares)	19,865	11,585	19,865	11,585
Earnings per share from continuing operations numerator:	'	'	'	'
Income from continuing operations attributable to common shareholders before allocation of earnings to participating securities	$66,764	$64,384	$124,287	$131,325
Income from continuing operations allocated to participating securities	102	44	192	105
Income from continuing operations attributable to common shareholders after allocation of earnings to participating securities	$66,662	$64,340	$124,095	$131,220
Earnings per share from continuing operations denominator:	'	'	'	'
Weighted-average number of shares of common stock outstanding - basic and diluted (in shares)	12,732,000	13,303,000	12,842,000	13,340,000
Earnings per share from continuing operations - basic and diluted (in dollars per share)	$5.24	$4.84	$9.66	$9.84

Intangibles_Net_of_Amortizatio2

Intangibles (Net of Amortization) and Goodwill (Narrative) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
			Customer Bases [Member]	Trademarks And Trade Names [Member]	Minimum [Member]	Minimum [Member]	Maximum [Member]	Maximum [Member]
					Contracts [Member]	Formulas And Technology [Member]	Contracts [Member]	Formulas And Technology [Member]
Finite-Lived Intangible Assets [Line Items]	'	'	'	'	'	'	'	'
Accumulated goodwill impairment	$0	$0	'	'	'	'	'	'
Estimated economic life, in years	'	'	'20 years	'10 years	'1 year 6 months	'5 years	'10 years	'20 years

Intangibles_Net_of_Amortizatio3

Intangibles (Net of Amortization) and Goodwill (Schedule Of Information Related To Identifiable Intangibles (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Amortizing intangible assets, Accumulated Amortization	$89,424	$86,273
Goodwill, Gross Carrying Amount	5,039	4,945
Amortizing intangible assets and Goodwill, Gross Carrying Amount	109,762	109,592
Formulas And Technology [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Amortizing intangible assets, Gross Carrying Amount	88,970	88,917
Amortizing intangible assets, Accumulated Amortization	79,635	77,217
Contracts [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Amortizing intangible assets, Gross Carrying Amount	7,127	7,127
Amortizing intangible assets, Accumulated Amortization	5,973	5,528
Customer Bases [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Amortizing intangible assets, Gross Carrying Amount	7,026	7,012
Amortizing intangible assets, Accumulated Amortization	3,126	2,918
Trademarks And Trade Names [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Amortizing intangible assets, Gross Carrying Amount	1,600	1,591
Amortizing intangible assets, Accumulated Amortization	$690	$610

Intangibles_Net_of_Amortizatio4

Intangibles (Net of Amortization) and Goodwill (Schedule Of Amortization Expense And Estimated Annual Amortization Expense Related To Intangible Assets) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'	'
Amortization expense	$1,576	$1,864	$3,151	$3,728
2014	3,012	'	3,012	'
2015	5,790	'	5,790	'
2016	1,910	'	1,910	'
2017	746	'	746	'
2018	715	'	715	'
2019	$688	'	$688	'

Longterm_Debt_Narrative_Detail

Long-term Debt (Narrative) (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Senior Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Principal amount of debt	350,000,000	'
Revolving Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Average interest rate during the period	3.80%	2.20%

Longterm_Debt_Schedule_Of_Long

Long-term Debt (Schedule Of Long-Term Debt) (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]	'	'
Outstanding borrowings	$353,497	$349,467
Revolving Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Outstanding borrowings	4,000	0
Senior Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Outstanding borrowings	$349,497	$349,467
Senior notes, interest rate	4.10%	'
Debt instrument, maturity date	'2022	'

Longterm_Debt_Schedule_Of_Unus

Long-term Debt (Schedule Of Unused Portion Of Revolving Credit Facility) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]	'	'
Outstanding borrowings	$353,497,000	$349,467,000
Revolving Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Maximum borrowing capacity under the revolving credit facility	650,000,000	650,000,000
Outstanding borrowings	4,000,000	0
Outstanding letters of credit	3,100,000	3,100,000
Unused portion of revolving credit facility	$642,900,000	$646,900,000

Contractual_Commitments_and_Co1

Contractual Commitments and Contingencies (Environmental) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Site Contingency [Line Items]	'	'
Accruals for environmental remediation, dismantling, and decontamination	$17	$18
Former TEL Plant Site Louisiana And Houston Texas Plant Site [Member]	'	'
Site Contingency [Line Items]	'	'
Accruals for environmental remediation, dismantling, and decontamination	11	11
Accruals for environmental remediation, dismantling, and decontamination, undiscounted	15	16
Former TEL Plant Site, Louisiana [Member]	'	'
Site Contingency [Line Items]	'	'
Accrual for remediation of groundwater and soil	5	5
Houston, Texas Plant Site [Member]	'	'
Site Contingency [Line Items]	'	'
Accrual for remediation of groundwater and soil	$6	$6
Minimum [Member] | Former TEL Plant Site Louisiana And Houston Texas Plant Site [Member]	'	'
Site Contingency [Line Items]	'	'
Discount rate	3.00%	3.00%
Maximum [Member] | Former TEL Plant Site Louisiana And Houston Texas Plant Site [Member]	'	'
Site Contingency [Line Items]	'	'
Discount rate	9.00%	9.00%

Contractual_Commitments_and_Co2

Contractual Commitments and Contingencies (Guarantees) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014
		Minimum [Member]	Maximum [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Letters of Credit [Member]
						Revolving Credit Facility [Member]
Lettters Of Credit And Guarantees [Line Items]	'	'	'	'	'	'
Outstanding guarantees	$6,000,000	'	'	'	'	'
Maximum borrowing capacity under the revolving credit facility	'	'	'	650,000,000	650,000,000	100,000,000
Maximum potential amount of future payments under all other guarantees not secured by letters of credit	$17,000,000	'	'	'	'	'
Letters of credit and certain guarantees, expiration date	'	'2014	'2015	'	'	'

Derivatives_and_Hedging_Activi3

Derivatives and Hedging Activities (Narrative) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Termination value of obligations	$23,000,000	'
Goldman Sachs [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Cash collateral deposit	27,770,000	25,839,000
Interest Rate Swap [Member] | Goldman Sachs [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Notional amount	97,000,000	'
Rate of fixed-rate payments for interest rate swap	5.31%	'
Cash collateral deposit	$27,770,000	$25,839,000

Derivatives_and_Hedging_Activi4

Derivatives and Hedging Activities (Fair Value Of Derivative Instruments) (Details) (Goldman Sachs [Member], Interest Rate Swap [Member], Accrued Expenses And Other Noncurrent Liabilities [Member], USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Goldman Sachs [Member] | Interest Rate Swap [Member] | Accrued Expenses And Other Noncurrent Liabilities [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Fair value of interest rate swap liability derivatives, not designated as hedging instruments	$23,229	$21,211

Derivatives_and_Hedging_Activi5

Derivatives and Hedging Activities (Effect Of Derivative Instruments On The Consolidated Statements Of Income Non-Designated Derivatives)(Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'		'		'		'
Amount of Gain (Loss) Recognized in Income on Derivatives	($2,270)	[1]	$5,098	[1]	($4,503)	[1]	$5,775	[1]
Goldman Sachs [Member] | Interest Rate Swap [Member] | Other (Expense) Income, Net [Member]	'		'		'		'
Derivative Instruments, Gain (Loss) [Line Items]	'		'		'		'
Amount of Gain (Loss) Recognized in Income on Derivatives	($2,270)		$5,097		($4,503)		$5,775
[1]	The gain (loss) on interest rate swap agreement represents the change, since the beginning of the reporting period, in the fair value of an interest rate swap which we entered into on June 25, 2009. We are not using hedge accounting to record the interest rate swap, and accordingly, any change in the fair value is immediately recognized in earnings.

Other_Comprehensive_Income_Los2

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss (Schedule of Components of Accumulated Other Comprehensive Loss) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'	'
Pension Plans and Other Postretirement Benefits, Beginning Balance	'	'	($44,493)	($96,139)
Derivative Instruments, Beginning Balance	'	'	0	-4,173
Foreign Currency Translation Adjustments, Beginning Balance	'	'	-15,593	-10,377
Accumulated Other Comprehensive (Loss) Income, Beginning Balance	'	'	-60,086	-110,689
Other comprehensive income (loss) before reclassifications, Pension Plans and Other Postretirement Benefits	'	'	-90	285
Other comprehensive income (loss) before reclassifications, Derivative Instruments	'	'	0	0
Other comprehensive income (loss) before reclassifications, Foreign Currency Translation Adjustments	8,535	-4,130	9,560	-22,410
Other comprehensive income (loss) before reclassifications, Accumulated Other Comprehensive (Loss) Income	'	'	9,470	-22,125
Amounts reclassified from accumulated other comprehensive loss, Pension Plans and Other Postretirement Benefits	1,103	1,752	1,809	3,127
Amounts reclassified from accumulated other comprehensive loss, Derivative Instruments	0	1,479	0	1,692
Amounts reclassified from accumulated other comprehensive loss, Foreign Currency Translation Adjustments	'	'	0	0
Total reclassifications for the period	1,103	3,231	1,809	4,819
Total pension plans and other postretirement benefits	1,013	2,037	1,719	3,412
Other comprehensive income (loss), Derivative Instruments	'	'	0	1,692
Other comprehensive income (loss), Foreign Currency Translation Adjustments	'	'	9,560	-22,410
Other comprehensive income (loss)	9,548	-614	11,279	-17,306
Pension Plans and Other Postretirement Benefits, Ending Balance	-42,774	-92,727	-42,774	-92,727
Derivative Instruments, Ending Balance	0	-2,481	0	-2,481
Foreign Currency Translation Adjustments, Ending Balance	-6,033	-32,787	-6,033	-32,787
Accumulated Other Comprehensive (Loss) Income, Ending Balance	($48,807)	($127,995)	($48,807)	($127,995)

Other_Comprehensive_Income_Los3

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss (Schedule of Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Loss) (Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Pension plans and other postretirement benefits:	'		'		'		'
Amortization of prior service (credit) cost	($3)	[1]	$3	[1]	($6)	[1]	$5	[1]
Amortization of actuarial net loss	705	[1]	1,362	[1]	1,412	[1]	2,725	[1]
Settlements and curtailments	399	[1]	378	[1]	399	[1]	378	[1]
Amortization of transition obligation	2	[1]	9	[1]	4	[1]	19	[1]
Total pension plans and other postretirement benefits	1,103		1,752		1,809		3,127
Derivative instruments:	'		'		'		'
Amounts reclassified from accumulated other comprehensive loss, Derivative Instruments	0		1,479		0		1,692
Total reclassifications for the period	1,103		3,231		1,809		4,819
Amortization of interest rate swap, income tax expense	'		942		'		1,077
(Loss) income from operations of discontinued business, net of tax [Member] | Interest Rate Swap [Member] | Mortgage Loan Interest Rate Swap [Member]	'		'		'		'
Derivative instruments:	'		'		'		'
Amounts reclassified from accumulated other comprehensive loss, Derivative Instruments	0		1,466	[2]	0		1,666	[2]
Amortization of interest rate swap, income tax expense	'		934		'		1,100
(Loss) income from operations of discontinued business, net of tax [Member] | Interest Rate Swap [Member] | Construction Loan Interest Rate Swap [Member]	'		'		'		'
Derivative instruments:	'		'		'		'
Amounts reclassified from accumulated other comprehensive loss, Derivative Instruments	0		13	[2]	0		26	[2]
Amortization of interest rate swap, income tax expense	'		$8		'		$16
[1]	(a) These components of accumulated other comprehensive loss are included in the computation of net periodic benefit cost (income). See Note 4 in this Form 10-Q and Note 18 in our 2013 Annual Report for further information.
[2]	(b) Amounts relate to the Foundry Park I mortgage loan interest rate swap and the construction loan interest rate swap. Amounts are presented net of income tax expense of $934 thousand for the mortgage loan interest rate swap and $8 thousand for the construction loan interest rate swap for the second quarter ended June 30, 2013 and $1.1 million for the mortgage loan interest rates swap and $16 thousand for the construction loan interest rate swap for the six months ended June 30, 2013. Due to the sale of the real estate assets of Foundry Park I in July 2013, the amounts recorded in accumulated other comprehensive loss for both interest rate swaps were completely recognized in the Consolidated Statements of Income in 2013.

Fair_Value_Measurements_Assets

Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Measurements [Line Items]	'	'	'	'
Cash and cash equivalents, Carrying Amount in Consolidated Balance Sheets	$113,644	$238,703	$73,545	$89,129
Goldman Sachs [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash deposit for collateralized interest rate swap, Carrying Amount in Consolidated Balance Sheets	27,770	25,839	'	'
Carrying Amount in Consolidated Balance Sheets [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash and cash equivalents, Carrying Amount in Consolidated Balance Sheets	113,644	238,703	'	'
Interest rate swap liability, Carrying Amount in Consolidated Balance Sheets	23,229	21,211	'	'
Fair Value [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	113,644	238,703	'	'
Interest rate swap liability, Fair Value	23,229	21,211	'	'
Fair Value [Member] | Goldman Sachs [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash deposit for collateralized interest rate swap, Fair Value	27,770	25,839	'	'
Fair Value, Level 1 [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	113,644	238,703	'	'
Interest rate swap liability, Fair Value	0	0	'	'
Fair Value, Level 1 [Member] | Goldman Sachs [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash deposit for collateralized interest rate swap, Fair Value	27,770	25,839	'	'
Fair Value, Level 2 [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	0	0	'	'
Interest rate swap liability, Fair Value	23,229	21,211	'	'
Fair Value, Level 2 [Member] | Goldman Sachs [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash deposit for collateralized interest rate swap, Fair Value	0	0	'	'
Fair Value, Level 3 [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	0	0	'	'
Interest rate swap liability, Fair Value	0	0	'	'
Fair Value, Level 3 [Member] | Goldman Sachs [Member]	'	'	'	'
Fair Value Measurements [Line Items]	'	'	'	'
Cash deposit for collateralized interest rate swap, Fair Value	$0	$0	'	'

Fair_Value_Measurements_Estima

Fair Value Measurements (Estimated Fair Value Of Long-Term Debt) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]	'	'
Long-term debt, Carrying Amount	$353,497	$349,467
Long-term debt, Fair Value	$375,319	$345,283

Consolidating_Financial_Inform2

Consolidating Financial Information (Narrative) (Details)	Jun. 30, 2014
Senior Notes [Member]	'
Senior notes, interest rate	4.10%
Guarantor Subsidiaries [Member]	'
Percent ownership interest by Parent Company	100.00%
Non-Guarantor Subsidiaries [Member]	'
Percent ownership interest by Parent Company	100.00%

Consolidating_Financial_Inform3

Consolidating Financial Information (Consolidating Statements of Income and Comprehensive Income) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net sales	$620,438	$583,779	$1,196,860	$1,143,529
Cost of goods sold	439,692	414,351	854,184	805,694
Gross profit	180,746	169,428	342,676	337,835
Selling, general, and administrative expenses	40,913	39,921	80,461	80,862
Research, development, and testing expenses	35,367	36,429	67,574	67,450
Operating (loss) profit	104,466	93,078	194,641	189,523
Interest and financing expenses, net	4,346	4,573	8,510	9,355
Other (expense) income, net	-2,203	5,374	-4,419	6,121
(Loss) income from continuing operations before income taxes and equity income of subsidiaries	97,917	93,879	181,712	186,289
Income tax (benefit) expense	31,153	29,495	57,425	54,964
Equity income of subsidiaries	0	0	0	0
Income from continuing operations	66,764	64,384	124,287	131,325
(Loss) income from operations of discontinued business, net of tax	0	-374	0	520
Net income	66,764	64,010	124,287	131,845
Other comprehensive income (loss)	9,548	-614	11,279	-17,306
Comprehensive income	76,312	63,396	135,566	114,539
Parent Company [Member]	'	'	'	'
Net sales	0	0	0	0
Cost of goods sold	0	0	0	0
Gross profit	0	0	0	0
Selling, general, and administrative expenses	1,609	1,779	3,338	3,464
Research, development, and testing expenses	0	0	0	0
Operating (loss) profit	-1,609	-1,779	-3,338	-3,464
Interest and financing expenses, net	4,535	4,749	8,883	9,559
Other (expense) income, net	-2,260	5,118	-4,492	5,819
(Loss) income from continuing operations before income taxes and equity income of subsidiaries	-8,404	-1,410	-16,713	-7,204
Income tax (benefit) expense	-3,505	-759	-6,984	-2,772
Equity income of subsidiaries	71,663	64,661	134,016	136,277
Income from continuing operations	'	64,010	'	131,845
(Loss) income from operations of discontinued business, net of tax	'	0	'	0
Net income	66,764	64,010	124,287	131,845
Other comprehensive income (loss)	9,548	-614	11,279	-17,306
Comprehensive income	76,312	63,396	135,566	114,539
Guarantor Subsidiaries [Member]	'	'	'	'
Net sales	239,631	233,955	447,905	454,020
Cost of goods sold	117,140	122,851	218,814	234,145
Gross profit	122,491	111,104	229,091	219,875
Selling, general, and administrative expenses	22,131	22,059	43,010	43,135
Research, development, and testing expenses	25,604	24,104	47,634	46,057
Operating (loss) profit	74,756	64,941	138,447	130,683
Interest and financing expenses, net	-1,028	-1,072	-2,010	-2,010
Other (expense) income, net	-36	-1	-61	-6
(Loss) income from continuing operations before income taxes and equity income of subsidiaries	75,748	66,012	140,396	132,687
Income tax (benefit) expense	27,556	16,898	49,207	41,796
Equity income of subsidiaries	0	0	0	0
Income from continuing operations	'	49,114	'	90,891
(Loss) income from operations of discontinued business, net of tax	'	0	'	0
Net income	48,192	49,114	91,189	90,891
Other comprehensive income (loss)	1,448	665	1,993	-3,105
Comprehensive income	49,640	49,779	93,182	87,786
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Net sales	380,807	349,824	748,955	689,509
Cost of goods sold	322,552	291,500	635,370	571,549
Gross profit	58,255	58,324	113,585	117,960
Selling, general, and administrative expenses	17,173	16,083	34,113	34,263
Research, development, and testing expenses	9,763	12,325	19,940	21,393
Operating (loss) profit	31,319	29,916	59,532	62,304
Interest and financing expenses, net	839	896	1,637	1,806
Other (expense) income, net	93	257	134	308
(Loss) income from continuing operations before income taxes and equity income of subsidiaries	30,573	29,277	58,029	60,806
Income tax (benefit) expense	7,102	13,356	15,202	15,940
Equity income of subsidiaries	0	0	0	0
Income from continuing operations	'	15,921	'	44,866
(Loss) income from operations of discontinued business, net of tax	'	-374	'	520
Net income	23,471	15,547	42,827	45,386
Other comprehensive income (loss)	7,758	-2,102	8,602	-15,847
Comprehensive income	31,229	13,445	51,429	29,539
Total Consolidating Adjustments [Member]	'	'	'	'
Net sales	0	0	0	0
Cost of goods sold	0	0	0	0
Gross profit	0	0	0	0
Selling, general, and administrative expenses	0	0	0	0
Research, development, and testing expenses	0	0	0	0
Operating (loss) profit	0	0	0	0
Interest and financing expenses, net	0	0	0	0
Other (expense) income, net	0	0	0	0
(Loss) income from continuing operations before income taxes and equity income of subsidiaries	0	0	0	0
Income tax (benefit) expense	0	0	0	0
Equity income of subsidiaries	-71,663	-64,661	-134,016	-136,277
Income from continuing operations	'	-64,661	'	-136,277
(Loss) income from operations of discontinued business, net of tax	'	0	'	0
Net income	-71,663	-64,661	-134,016	-136,277
Other comprehensive income (loss)	-9,206	1,437	-10,595	18,952
Comprehensive income	($80,869)	($63,224)	($144,611)	($117,325)

Consolidating_Financial_Inform4

Consolidating Financial Information (Consolidating Balance Sheets) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS	'	'	'	'
Cash and cash equivalents	$113,644	$238,703	$73,545	$89,129
Trade and other accounts receivable, net	347,630	309,847	'	'
Amounts due from affiliated companies	0	0	'	'
Inventories	329,383	307,518	'	'
Deferred income taxes	6,346	8,267	'	'
Prepaid expenses and other current assets	36,029	32,984	'	'
Total current assets	833,032	897,319	'	'
Amounts due from affiliated companies	0	0	'	'
Property, plant, and equipment, at cost	1,003,519	985,196	'	'
Less accumulated depreciation and amortization	713,072	700,160	'	'
Net property, plant, and equipment	290,447	285,036	'	'
Investment in consolidated subsidiaries	0	0	'	'
Prepaid pension cost	61,882	55,087	'	'
Deferred income taxes	21,730	22,961	'	'
Intangibles (net of amortization) and goodwill	20,338	23,319	'	'
Deferred charges and other assets	44,921	43,552	'	'
Total assets	1,272,350	1,327,274	'	'
LIABILITIES AND SHAREHOLDERS’ EQUITY	'	'	'	'
Accounts payable	137,479	134,132	'	'
Accrued expenses	73,006	77,992	'	'
Dividends payable	12,578	12,996	'	'
Amounts due to affiliated companies	0	0	'	'
Income taxes payable	11,972	11,419	'	'
Other current liabilities	11,023	11,075	'	'
Total current liabilities	246,058	247,614	'	'
Long-term debt	353,497	349,467	'	'
Amounts due to affiliated companies	0	0	'	'
Other noncurrent liabilities	159,298	157,745	'	'
Total liabilities	758,853	754,826	'	'
Shareholders’ equity:	'	'	'	'
Common stock and paid-in capital	0	0	'	'
Accumulated other comprehensive loss	-48,807	-60,086	-127,995	-110,689
Retained earnings	562,304	632,534	'	'
Total shareholders' equity	513,497	572,448	466,445	402,205
Total liabilities and shareholders’ equity	1,272,350	1,327,274	'	'
Parent Company [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	38	1,038	3	5,001
Trade and other accounts receivable, net	1,714	1,512	'	'
Amounts due from affiliated companies	88,743	0	'	'
Inventories	0	0	'	'
Deferred income taxes	2,590	2,600	'	'
Prepaid expenses and other current assets	12,721	13,055	'	'
Total current assets	105,806	18,205	'	'
Amounts due from affiliated companies	0	0	'	'
Property, plant, and equipment, at cost	0	0	'	'
Less accumulated depreciation and amortization	0	0	'	'
Net property, plant, and equipment	0	0	'	'
Investment in consolidated subsidiaries	906,161	955,560	'	'
Prepaid pension cost	26,476	23,276	'	'
Deferred income taxes	20,756	20,999	'	'
Intangibles (net of amortization) and goodwill	0	0	'	'
Deferred charges and other assets	34,509	33,257	'	'
Total assets	1,093,708	1,051,297	'	'
LIABILITIES AND SHAREHOLDERS’ EQUITY	'	'	'	'
Accounts payable	6	6	'	'
Accrued expenses	11,972	10,788	'	'
Dividends payable	12,578	12,996	'	'
Amounts due to affiliated companies	117,104	23,183	'	'
Income taxes payable	0	0	'	'
Other current liabilities	0	0	'	'
Total current liabilities	141,660	46,973	'	'
Long-term debt	353,497	349,467	'	'
Amounts due to affiliated companies	0	0	'	'
Other noncurrent liabilities	85,054	82,409	'	'
Total liabilities	580,211	478,849	'	'
Shareholders’ equity:	'	'	'	'
Common stock and paid-in capital	0	0	'	'
Accumulated other comprehensive loss	-48,807	-60,086	'	'
Retained earnings	562,304	632,534	'	'
Total shareholders' equity	513,497	572,448	'	'
Total liabilities and shareholders’ equity	1,093,708	1,051,297	'	'
Guarantor Subsidiaries [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	3,443	102,205	4,988	3,956
Trade and other accounts receivable, net	109,668	108,908	'	'
Amounts due from affiliated companies	238,071	139,710	'	'
Inventories	123,005	115,442	'	'
Deferred income taxes	3,313	4,919	'	'
Prepaid expenses and other current assets	20,496	17,886	'	'
Total current assets	497,996	489,070	'	'
Amounts due from affiliated companies	112,289	113,076	'	'
Property, plant, and equipment, at cost	701,212	692,024	'	'
Less accumulated depreciation and amortization	563,444	555,805	'	'
Net property, plant, and equipment	137,768	136,219	'	'
Investment in consolidated subsidiaries	0	0	'	'
Prepaid pension cost	17,320	16,092	'	'
Deferred income taxes	0	0	'	'
Intangibles (net of amortization) and goodwill	14,117	17,036	'	'
Deferred charges and other assets	9,129	9,014	'	'
Total assets	788,619	780,507	'	'
LIABILITIES AND SHAREHOLDERS’ EQUITY	'	'	'	'
Accounts payable	82,305	86,649	'	'
Accrued expenses	38,475	46,401	'	'
Dividends payable	0	0	'	'
Amounts due to affiliated companies	177,157	77,098	'	'
Income taxes payable	384	0	'	'
Other current liabilities	7,927	7,828	'	'
Total current liabilities	306,248	217,976	'	'
Long-term debt	0	0	'	'
Amounts due to affiliated companies	8,025	8,025	'	'
Other noncurrent liabilities	41,537	41,014	'	'
Total liabilities	355,810	267,015	'	'
Shareholders’ equity:	'	'	'	'
Common stock and paid-in capital	260,776	260,776	'	'
Accumulated other comprehensive loss	-3,792	-5,786	'	'
Retained earnings	175,825	258,502	'	'
Total shareholders' equity	432,809	513,492	'	'
Total liabilities and shareholders’ equity	788,619	780,507	'	'
Non-Guarantor Subsidiaries [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	110,163	135,460	68,554	80,172
Trade and other accounts receivable, net	236,248	199,431	'	'
Amounts due from affiliated companies	89,755	77,098	'	'
Inventories	206,378	192,076	'	'
Deferred income taxes	443	748	'	'
Prepaid expenses and other current assets	2,812	2,043	'	'
Total current assets	645,799	606,856	'	'
Amounts due from affiliated companies	8,025	8,025	'	'
Property, plant, and equipment, at cost	302,307	293,172	'	'
Less accumulated depreciation and amortization	149,628	144,355	'	'
Net property, plant, and equipment	152,679	148,817	'	'
Investment in consolidated subsidiaries	0	0	'	'
Prepaid pension cost	18,086	15,719	'	'
Deferred income taxes	7,158	7,984	'	'
Intangibles (net of amortization) and goodwill	6,221	6,283	'	'
Deferred charges and other assets	1,283	1,281	'	'
Total assets	839,251	794,965	'	'
LIABILITIES AND SHAREHOLDERS’ EQUITY	'	'	'	'
Accounts payable	55,168	47,477	'	'
Accrued expenses	22,559	20,803	'	'
Dividends payable	0	0	'	'
Amounts due to affiliated companies	122,308	116,527	'	'
Income taxes payable	11,588	11,423	'	'
Other current liabilities	3,096	3,247	'	'
Total current liabilities	214,719	199,477	'	'
Long-term debt	0	0	'	'
Amounts due to affiliated companies	112,289	113,076	'	'
Other noncurrent liabilities	38,891	40,344	'	'
Total liabilities	365,899	352,897	'	'
Shareholders’ equity:	'	'	'	'
Common stock and paid-in capital	126,662	126,661	'	'
Accumulated other comprehensive loss	-31,758	-40,360	'	'
Retained earnings	378,448	355,767	'	'
Total shareholders' equity	473,352	442,068	'	'
Total liabilities and shareholders’ equity	839,251	794,965	'	'
Total Consolidating Adjustments [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	0	0	0	0
Trade and other accounts receivable, net	0	-4	'	'
Amounts due from affiliated companies	-416,569	-216,808	'	'
Inventories	0	0	'	'
Deferred income taxes	0	0	'	'
Prepaid expenses and other current assets	0	0	'	'
Total current assets	-416,569	-216,812	'	'
Amounts due from affiliated companies	-120,314	-121,101	'	'
Property, plant, and equipment, at cost	0	0	'	'
Less accumulated depreciation and amortization	0	0	'	'
Net property, plant, and equipment	0	0	'	'
Investment in consolidated subsidiaries	-906,161	-955,560	'	'
Prepaid pension cost	0	0	'	'
Deferred income taxes	-6,184	-6,022	'	'
Intangibles (net of amortization) and goodwill	0	0	'	'
Deferred charges and other assets	0	0	'	'
Total assets	-1,449,228	-1,299,495	'	'
LIABILITIES AND SHAREHOLDERS’ EQUITY	'	'	'	'
Accounts payable	0	0	'	'
Accrued expenses	0	0	'	'
Dividends payable	0	0	'	'
Amounts due to affiliated companies	-416,569	-216,808	'	'
Income taxes payable	0	-4	'	'
Other current liabilities	0	0	'	'
Total current liabilities	-416,569	-216,812	'	'
Long-term debt	0	0	'	'
Amounts due to affiliated companies	-120,314	-121,101	'	'
Other noncurrent liabilities	-6,184	-6,022	'	'
Total liabilities	-543,067	-343,935	'	'
Shareholders’ equity:	'	'	'	'
Common stock and paid-in capital	-387,438	-387,437	'	'
Accumulated other comprehensive loss	35,550	46,146	'	'
Retained earnings	-554,273	-614,269	'	'
Total shareholders' equity	-906,161	-955,560	'	'
Total liabilities and shareholders’ equity	($1,449,228)	($1,299,495)	'	'

Consolidating_Financial_Inform5

Consolidating Financial Information (Condensed Consolidating Statements of Cash Flows) (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash provided from (used in) operating activities	$84,516	$122,906
Cash flows from investing activities:	'	'
Capital expenditures	-20,654	-31,849
Deposits for interest rate swap	-4,861	-7,762
Return of deposits for interest rate swap	2,930	17,110
Other, net	-2,485	-2,464
Cash provided from (used in) investing activities	-25,070	-24,965
Cash flows from financing activities:	'	'
Net borrowings (repayments) under revolving credit facility	4,000	-60,000
Net (repayments) borrowings under lines of credit	-151	3,404
Dividends paid	-28,155	-23,980
Debt issuance costs	0	-1,145
Repurchases of common stock	-162,867	-26,798
Issuance of intercompany note payable, net	0	0
Repayment of intercompany note payable, net	0	0
Financing from affiliated companies	0	0
Cash provided from (used in) financing activities	-187,173	-108,519
Effect of foreign exchange on cash and cash equivalents	2,668	-5,006
(Decrease) increase in cash and cash equivalents	-125,059	-15,584
Cash and cash equivalents at beginning of year	238,703	89,129
Cash and cash equivalents at end of period	113,644	73,545
Parent Company [Member]	'	'
Cash provided from (used in) operating activities	190,441	94,404
Cash flows from investing activities:	'	'
Capital expenditures	0	0
Deposits for interest rate swap	-4,861	-7,762
Return of deposits for interest rate swap	2,930	17,110
Other, net	-2,485	-2,464
Cash provided from (used in) investing activities	-4,416	6,884
Cash flows from financing activities:	'	'
Net borrowings (repayments) under revolving credit facility	4,000	-60,000
Net (repayments) borrowings under lines of credit	0	0
Dividends paid	-28,155	-23,980
Debt issuance costs	'	-1,145
Repurchases of common stock	-162,867	-26,798
Issuance of intercompany note payable, net	0	0
Repayment of intercompany note payable, net	0	5,639
Financing from affiliated companies	-3	-2
Cash provided from (used in) financing activities	-187,025	-106,286
Effect of foreign exchange on cash and cash equivalents	0	0
(Decrease) increase in cash and cash equivalents	-1,000	-4,998
Cash and cash equivalents at beginning of year	1,038	5,001
Cash and cash equivalents at end of period	38	3
Guarantor Subsidiaries [Member]	'	'
Cash provided from (used in) operating activities	105,299	-45,219
Cash flows from investing activities:	'	'
Capital expenditures	-11,942	-14,058
Deposits for interest rate swap	0	0
Return of deposits for interest rate swap	0	0
Other, net	0	0
Cash provided from (used in) investing activities	-11,942	-14,058
Cash flows from financing activities:	'	'
Net borrowings (repayments) under revolving credit facility	0	0
Net (repayments) borrowings under lines of credit	0	0
Dividends paid	-194,007	-86,585
Debt issuance costs	'	0
Repurchases of common stock	0	0
Issuance of intercompany note payable, net	-10,748	-4,207
Repayment of intercompany note payable, net	14,329	13,402
Financing from affiliated companies	-1,693	137,699
Cash provided from (used in) financing activities	-192,119	60,309
Effect of foreign exchange on cash and cash equivalents	0	0
(Decrease) increase in cash and cash equivalents	-98,762	1,032
Cash and cash equivalents at beginning of year	102,205	3,956
Cash and cash equivalents at end of period	3,443	4,988
Non-Guarantor Subsidiaries [Member]	'	'
Cash provided from (used in) operating activities	4,626	32,525
Cash flows from investing activities:	'	'
Capital expenditures	-8,712	-17,791
Deposits for interest rate swap	0	0
Return of deposits for interest rate swap	0	0
Other, net	0	0
Cash provided from (used in) investing activities	-8,712	-17,791
Cash flows from financing activities:	'	'
Net borrowings (repayments) under revolving credit facility	0	0
Net (repayments) borrowings under lines of credit	-151	3,404
Dividends paid	-20,147	-9,916
Debt issuance costs	'	0
Repurchases of common stock	0	0
Issuance of intercompany note payable, net	10,748	4,207
Repayment of intercompany note payable, net	-14,329	-19,041
Financing from affiliated companies	0	0
Cash provided from (used in) financing activities	-23,879	-21,346
Effect of foreign exchange on cash and cash equivalents	2,668	-5,006
(Decrease) increase in cash and cash equivalents	-25,297	-11,618
Cash and cash equivalents at beginning of year	135,460	80,172
Cash and cash equivalents at end of period	110,163	68,554
Total Consolidating Adjustments [Member]	'	'
Cash provided from (used in) operating activities	-215,850	41,196
Cash flows from investing activities:	'	'
Capital expenditures	0	0
Deposits for interest rate swap	0	0
Return of deposits for interest rate swap	0	0
Other, net	0	0
Cash provided from (used in) investing activities	0	0
Cash flows from financing activities:	'	'
Net borrowings (repayments) under revolving credit facility	0	0
Net (repayments) borrowings under lines of credit	0	0
Dividends paid	214,154	96,501
Debt issuance costs	'	0
Repurchases of common stock	0	0
Issuance of intercompany note payable, net	0	0
Repayment of intercompany note payable, net	0	0
Financing from affiliated companies	1,696	-137,697
Cash provided from (used in) financing activities	215,850	-41,196
Effect of foreign exchange on cash and cash equivalents	0	0
(Decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of year	0	0
Cash and cash equivalents at end of period	$0	$0