Materion (MTRN) 10-Q 30 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 26, 2014	Oct. 15, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'MATERION Corp	'
Entity Central Index Key	'0001104657	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	26-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'MTRN	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	20,154,663

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Income Statement [Abstract]	'	'	'	'
Net sales	$291,570	$275,434	$838,465	$880,744
Cost of sales	236,727	230,951	688,359	741,930
Gross margin	54,843	44,483	150,106	138,814
Selling, general and administrative expense	34,823	31,804	100,768	97,910
Research and development expense	3,243	3,190	9,473	9,901
Other—net	-644	4,161	-3,177	9,592
Operating profit	17,421	5,328	43,042	21,411
Interest expense—net	764	715	2,132	2,356
Income before income taxes	16,657	4,613	40,910	19,055
Income tax expense (benefit)	4,217	-379	11,165	3,123
Net income	$12,440	$4,992	$29,745	$15,932
Basic earnings per share:	'	'	'	'
Net income per share of common stock (in dollars per share)	$0.61	$0.24	$1.45	$0.78
Diluted earnings per share:	'	'	'	'
Net income per share of common stock (in dollars per share)	$0.60	$0.24	$1.42	$0.76
Cash dividends per share (in dollars per share)	$0.09	$0.08	$0.25	$0.24
Weighted-average number of shares of common stock outstanding:	'	'	'	'
Basic (in shares)	20,490	20,604	20,579	20,551
Diluted (in shares)	20,827	20,931	20,927	20,874

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$12,440	$4,992	$29,745	$15,932
Other comprehensive income:	'	'	'	'
Foreign currency translation adjustment	-2,170	478	-1,455	-2,902
Derivative and hedging activity, net of tax	1,480	-428	1,567	-273
Pension and post employment benefit adjustment, net of tax	540	1,232	10,465	3,670
Net change in accumulated other comprehensive income	-150	1,282	10,577	495
Comprehensive income	$12,290	$6,274	$40,322	$16,427

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$19,610	$22,774
Accounts receivable	126,950	113,012
Inventories	227,286	232,800
Prepaid expenses	17,231	16,353
Deferred income taxes	9,965	10,325
Total current assets	401,042	395,264
Long-term deferred income taxes	5,502	5,941
Property, plant, and equipment—cost	793,983	782,879
Less allowances for depreciation, depletion, and amortization	-545,183	-520,986
Property, plant, and equipment—net	248,800	261,893
Intangible assets	20,046	24,248
Other assets	4,693	3,874
Goodwill	86,725	86,725
Total assets	766,808	777,945
Current liabilities	'	'
Short-term debt	6,613	35,566
Accounts payable	32,158	36,556
Other liabilities and accrued items	59,562	54,851
Income taxes	7,955	1,564
Unearned revenue	1,239	479
Total current liabilities	107,527	129,016
Other long-term liabilities	16,187	16,531
Retirement and post-employment benefits	53,493	80,275
Unearned income	52,970	56,490
Long-term income taxes	1,576	1,576
Deferred income taxes	4,895	1,469
Long-term debt	43,780	29,267
Common stock	201,030	197,576
Retained earnings	466,047	441,518
Common stock in treasury	-134,281	-118,151
Other comprehensive income (loss)	-49,311	-59,888
Other equity transactions	2,895	2,266
Total shareholders' equity	486,380	463,321
Total liabilities and shareholders’ equity	$766,808	$777,945

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013
Cash flows from operating activities:	'	'
Net income	$29,745	$15,932
Adjustments to reconcile net income to net cash provided from operating activities:	'	'
Depreciation, depletion, and amortization	32,333	30,842
Amortization of deferred financing costs in interest expense	627	501
Stock-based compensation expense	4,123	4,103
Changes in assets and liabilities net of acquired assets and liabilities:	'	'
Decrease (increase) in accounts receivable	-15,184	3,143
Decrease (increase) in inventory	-24,148	-13
Decrease (increase) in prepaid and other current assets	-579	2,055
Decrease (increase) in deferred income taxes	8	249
Increase (decrease) in accounts payable and accrued expenses	2,315	-21,216
Increase (decrease) in unearned revenue	760	-1,082
Increase (decrease) in interest and taxes payable	6,017	108
Increase (decrease) in long-term liabilities	-14,976	1,152
Other-net	-14	2,741
Net cash provided from operating activities	21,027	38,515
Cash flows from investing activities:	'	'
Payments for purchase of property, plant, and equipment	-19,843	-19,830
Payments for mine development	-670	-4,407
Proceeds from sale of property, plant, and equipment	3,084	23
Other investments-net	-2	20
Net cash used in investing activities	-17,431	-24,194
Cash flows from financing activities:	'	'
Repayment of short-term debt	-291	-13,263
Proceeds from issuance of long-term debt	33,252	70,333
Repayment of long-term debt	-18,739	-62,789
Debt issuance costs	0	-1,554
Principal payments under capital lease obligations	-497	-491
Payment of dividends	-5,156	-4,847
Repurchase of common stock	-15,615	0
Issuance of common stock under stock option plans	360	1,075
Tax benefit from stock compensation realization	109	1,664
Net cash used in financing activities	-6,577	-9,872
Effect of exchange rate changes	-183	-348
Net change in cash and cash equivalents	-3,164	4,101
Cash and cash equivalents at beginning of period	22,774	16,056
Cash and cash equivalents at end of period	$19,610	$20,157

Accounting_Policies

Accounting Policies	9 Months Ended
	Sep. 26, 2014
Accounting Policies [Abstract]	'
Accounting Policies	'
	Accounting Policies
	In management’s opinion, the accompanying consolidated financial statements contain all adjustments necessary to present fairly the financial position as of September 26, 2014 and December 31, 2013, and the results of operations for the three months and nine months ended September 26, 2014 and September 27, 2013. All adjustments were of a normal and recurring nature. Certain amounts in prior years have been reclassified to conform to the 2014 consolidated financial statement presentation.
	In May 2014, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update, Revenue from Contracts with Customers, which supersedes previous revenue recognition guidance. The new standard requires that a company recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration the company expects to receive in exchange for those goods or services. Companies will need to use more judgment and estimates than under the guidance currently in effect, including estimating the amount of variable revenue to recognize over each identified performance obligation. Additional disclosures will be required to help users of financial statements understand the nature, amount and timing of revenue and cash flows arising from contracts. The new standard will become effective for Materion Corporation (the Company) beginning with the first quarter 2017 and can be adopted either retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Inventories

Inventories	9 Months Ended
	Sep. 26, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories
	Inventories on the Consolidated Balance Sheets are summarized as follows:
	(Thousands)	Sept. 26,		Dec. 31,
		2014		2013
	Principally average cost:
	Raw materials and supplies	$	40,845	$	39,201
	Work in process	150,140		152,645
	Finished goods	36,301		40,954
	Net inventories	$	227,286	$	232,800
	The December 31, 2013 balance reflects a reclassification of $19.4 million from prepaid assets to inventory. The Company determined it was more appropriate to reflect the fair market value adjustment related to certain of its precious metal inventory as inventory. The reclassification did not impact previously reported total current assets or total assets in the accompanying Consolidated Balance Sheets, net income in the Consolidated Statements of Income or net cash provided by operating activities in the Consolidated Statements of Cash Flows.
	The Company repaid a precious metal-denominated loan totaling $28.7 million as of December 31, 2013 and $31.3 million at the end of the second quarter of 2014. This debt reduction was completed by transferring 23,781 ounces of gold held in inventory to the lender as repayment for the outstanding short-term debt. There is a corresponding decrease in inventory of $31.3 million related to this transaction, which was treated as a non-cash item in the Consolidated Statement of Cash Flows.

Pensions_and_Other_Postemploym

Pensions and Other Post-employment Benefits	9 Months Ended
	Sep. 26, 2014
Compensation and Retirement Disclosure [Abstract]	'
Pensions and Other Post-employment Benefits	'
	Pensions and Other Post-employment Benefits
	The following is a summary of the net periodic benefit cost for the third quarter and first nine months of 2014 and 2013 for the domestic pension plans (which include the defined benefit pension plan and the supplemental retirement plans) and the domestic retiree medical plan.
		Pension Benefits						Other Benefits
		Third Quarter Ended						Third Quarter Ended
	(Thousands)	Sept. 26, 2014			Sept. 27, 2013			Sept. 26, 2014			Sept. 27, 2013
	Components of net periodic benefit cost
	Service cost	$	1,931		$	2,356		$	34		$	76
	Interest cost	2,449			2,353			169			311
	Expected return on plan assets	(3,013		)	(2,996		)	—			—
	Amortization of prior service cost (benefit)	(109		)	(85		)	(374		)	29
	Amortization of net loss	1,275			1,951			—			—
	Net periodic benefit cost (benefit)	$	2,533		$	3,579		$	(171	)	$	416
		Pension Benefits						Other Benefits
		Nine Months Ended						Nine Months Ended
	(Thousands)	Sept. 26, 2014			Sept. 27, 2013			Sept. 26, 2014			Sept. 27, 2013
	Components of net periodic benefit cost
	Service cost	$	5,794		$	7,066		$	103		$	229
	Interest cost	7,345			7,060			506			932
	Expected return on plan assets	(9,038		)	(8,989		)	—			—
	Amortization of prior service cost (benefit)	(326		)	(255		)	(1,123		)	86
	Amortization of net loss	3,825			5,816			—			—
	Net periodic benefit cost	$	7,600		$	10,698		$	(514	)	$	1,247
	The Company made contributions to the domestic defined benefit pension plans of $15.8 million in the first nine months of 2014.
	The Company has notified participants of changes to the domestic retiree medical plan, including changing the benefit formula for participants covered by the plan. The revised benefit formula is designed to lower costs for the Company and the majority of plan participants. As a result of this change, the plan liability on the Company's Consolidated Balance Sheets was reduced by $14.0 million in the first quarter of 2014, with the offset increasing other comprehensive income, a component of shareholders' equity. The liability reduction will be recognized in earnings over the average remaining service life of participants.

Contingencies

Contingencies	9 Months Ended
	Sep. 26, 2014
Loss Contingency [Abstract]	'
Contingencies	'
	Contingencies
	Materion Brush Inc., one of the Company's wholly owned subsidiaries, is a defendant from time to time in legal proceedings where the plaintiffs allege they have contracted chronic beryllium disease (CBD) or related ailments as a result of exposure to beryllium. The Company will record a reserve for CBD or other litigation when a loss from either settlement or verdict is probable and estimable. Claims filed by third-party plaintiffs where the alleged exposure occurred prior to December 31, 2007 may be covered by insurance subject to an annual deductible of $1.0 million. Reserves are recorded for asserted claims only and defense costs are expensed as incurred. A CBD case outstanding at the end of the second quarter of 2014 was settled for less than $0.1 million during the third quarter of 2014. A second CBD case filed in a prior period remained outstanding at the end of the third quarter of 2014, and the Company does not expect the resolution of this matter to have a material impact on the consolidated financial statements.
	The Company has an active environmental compliance program and records reserves for the probable cost of identified environmental remediation projects. The reserves are established based upon analyses conducted by the Company’s engineers and outside consultants and are adjusted from time to time based upon ongoing studies, the difference between actual and estimated costs, and other factors. The reserves may also be affected by rulings and negotiations with regulatory agencies. The undiscounted reserve balance was $4.8 million at September 26, 2014 and $4.8 million at December 31, 2013. Environmental projects tend to be long term, and the final actual remediation costs may differ from the amounts currently recorded.
	During the third quarter of 2014, the Company collected $4.0 million as part of a settlement agreement with a contractor for an outstanding dispute regarding construction of the Company's beryllium pebble plant located in Elmore, Ohio. The cash received and the benefit of this settlement was recorded in the third quarter of 2014 in Other-net in the Consolidated Statements of Income.

Segment_Reporting

Segment Reporting	9 Months Ended
	Sep. 26, 2014
Segment Reporting [Abstract]	'
Segment Reporting	'
	Segment Reporting
	(Thousands)	Advanced		Performance		Beryllium and			Technical		Subtotal		All			Total
		Material		Alloys		Composites			Materials				Other
		Technologies
	Third Quarter 2014
	Sales to external customers	$	177,483	$	80,863	$	17,946		$	15,278	$	291,570	$	—		$	291,570
	Intersegment sales	1,895		473		110			100		2,578		—			2,578
	Operating profit (loss)	7,691		6,529		992			1,445		16,657		764			17,421
	Third Quarter 2013
	Sales to external customers	$	176,294	$	69,578	$	13,685		$	15,877	$	275,434	$	—		$	275,434
	Intersegment sales	523		443		67			156		1,189		—			1,189
	Operating profit (loss)	4,146		4,520		(3,306		)	1,421		6,781		(1,453		)	5,328
	First Nine Months 2014
	Sales to external customers	$	519,793	$	224,289	$	50,041		$	44,342	$	838,465	$	—		$	838,465
	Intersegment sales	2,971		1,475		420			319		5,185		—			5,185
	Operating profit (loss)	26,790		15,307		282			2,586		44,965		(1,923		)	43,042
	Assets	280,208		275,778		147,537			22,965		726,488		40,320			766,808
	First Nine Months 2013
	Sales to external customers	$	566,158	$	218,435	$	42,194		$	53,957	$	880,744	$	—		$	880,744
	Intersegment sales	2,048		1,484		200			600		4,332		—			4,332
	Operating profit (loss)	5,211		18,654		(3,780		)	5,246		25,331		(3,920		)	21,411
	Assets	312,110		267,232		142,183			23,734		745,259		55,854			801,113

Stockbased_Compensation_Expens

Stock-based Compensation Expense	9 Months Ended
	Sep. 26, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-based Compensation Expense	'
	Stock-based Compensation Expense
	Stock-based compensation expense was $1.1 million in the third quarter of 2014 and $1.4 million in the third quarter of 2013. For the first nine months of the year, stock-based compensation expense was $4.1 million in 2014 and $4.1 million in 2013.
	The Company granted approximately 144,000 stock appreciation rights (SARs) to certain employees in the second quarter of 2014 at a strike price of $33.29 per share. The fair value of the SARs, which was determined on the grant date using a Black-Scholes model, was $12.48 per share and will be amortized over the vesting period of three years. The SARs expire in seven years from the date of the grant.
	The Company granted approximately 38,000 shares of restricted stock units to certain employees in the second quarter of 2014 at a weighted-average fair value of $33.29 per share. The fair value was determined using the closing price of the Company's common stock on the grant date and will be amortized over the vesting period of three years. The holders of the restricted stock units will forfeit their shares if their employment is terminated prior to the end of the vesting period.
	The Company granted approximately 25,000 performance-based restricted stock units to certain employees in the first quarter of 2014 at a fair value of $26.02 per share. The fair value will be expensed over the vesting period of three years. The final share payout to the employees will be based upon the Company’s total return to shareholders over the vesting period relative to a peer group’s performance over the same period.
	The Company received $0.4 million for the exercise of approximately 21,000 options during the first nine months of 2014 and $1.1 million for the exercise of approximately 69,000 options during the first nine months of 2013. Exercises of stock appreciation rights totaled approximately 50,000 in the first nine months of 2014 and 120,000 in the first nine months of 2013.

Othernet

Other-net	9 Months Ended
	Sep. 26, 2014
Other Income and Expenses [Abstract]	'
Other-net	'
	Other-net
	Other-net income (expense) for the third quarter and first nine months of 2014 and 2013 is summarized as follows:
		Third Quarter Ended						Nine Months Ended
		Sept. 26			Sept. 27			Sept. 26			Sept. 27
	(Thousands)	2014			2013			2014			2013
	Foreign currency exchange gain (loss)	$	450		$	126		$	(25	)	$	1,271
	Amortization of intangible assets	(1,208		)	(1,359		)	(3,841		)	(4,001		)
	Metal consignment fees	(1,770		)	(1,640		)	(5,481		)	(5,158		)
	Net gain (loss) on disposal of fixed assets	(225		)	(252		)	2,384			(251		)
	Recovery from insurance	—			—			6,750			—
	Legal settlement	4,000			—			4,000			—
	Other items	(603		)	(1,036		)	(610		)	(1,453		)
	Total	$	644		$	(4,161	)	$	3,177		$	(9,592	)

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 26, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The Company recorded income tax expense of $4.2 million in the third quarter of 2014, an effective tax rate of 25.3% against income before income taxes, and an income tax benefit of $0.4 million in the third quarter of 2013, an effective tax rate of (8.2%) against income before income taxes.
	In the first nine months of 2014, tax expense of $11.2 million was recorded, an effective tax rate of 27.3%. Tax expense was $3.1 million in the first nine months of 2013, an effective tax rate of 16.4%.
	The differences between the statutory and effective rates in the third quarter and first nine months of both years was due to the impact of percentage depletion, the production deduction, foreign source income and deductions, executive compensation, state and local taxes, discrete events, and other factors. The research and experimentation credit also provided a benefit in the third quarter and first nine months of 2013, but there was no tax benefit recorded in the first nine months of 2014 as the U.S. Congress has not extended the credit for 2014.
	The tax expense in the third quarter of 2014 included net favorable discrete items of $0.6 million that resulted from the finalization of the 2013 Federal tax return at a lower liability than what was previously recorded in the financial statements, the reversal of tax reserves due to the lapse of the statue of limitations, and other items.
	Discrete items were a favorable $1.3 million in the first nine months of 2013 resulting from the finalization of the 2012 Federal tax return during that period, the research and experimentation credit, and the impact of the lapse of the statue of limitations, and other items.
	In the third quarter of 2014, the Company recorded an adjustment of $2.0 million to increase deferred tax assets and reduce goodwill to correct the amount of deferred tax assets recognized in connection with the acquisition of EIS Optics Limited (EIS) in 2011 which is part of the Advanced Material Technologies segment. This adjustment was not material to previously issued financial statements as it had no net impact on total assets, equity or cash flows and had an immaterial impact on the Consolidated Statements of Income. The Company has reflected this adjustment in the accompanying 2013 Consolidated Balance Sheets.

Depreciation_and_Amortization

Depreciation and Amortization	9 Months Ended
	Sep. 26, 2014
Property, Plant and Equipment [Abstract]	'
Depreciation and Amortization	'
	Depreciation and Amortization
	The Company received $63.5 million from the U.S. Department of Defense (DoD) in previous periods for reimbursement of the DoD's share of the cost of capital equipment acquired by the Company under a Title III contract. The Company recorded the cost of the equipment in property, plant, and equipment and the reimbursements as unearned income, a liability on the Consolidated Balance Sheets. The equipment was placed in service during the third quarter of 2012, and its full cost is being depreciated in accordance with Company policy. The unearned income liability is being reduced ratably with the depreciation expense recorded over the life of the equipment.
	In the nine months ended September 26, 2014, the depreciation expense on the equipment subject to reimbursement was $3.5 million. Unearned income was reduced by $3.5 million, accordingly, with the offset recorded as a credit to cost of sales. Depreciation, depletion, and amortization expense on the Consolidated Statements of Cash Flows is shown net of the reduction in unearned income.
	Amortization of mine development costs are initially recorded in inventory and subsequently recorded in cost of sales in the period the inventory is sold. Depreciation, depletion, and amortization depicted on the Consolidated Statements of Cash Flows, including the mine development costs amortized into inventory, totaled $32.3 million in the nine months ended September 26, 2014 and $30.8 million in the nine months ended September 27, 2013. Depreciation, depletion, and amortization expense recorded in operating profit in the Consolidated Statements of Income totaled $29.7 million in the nine months ended September 26, 2014 and $29.0 million in the nine months ended September 27, 2013.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	9 Months Ended
	Sep. 26, 2014
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	The Company measures and records financial instruments at their fair values. A fair value hierarchy is used for those instruments measured at fair value that distinguishes between assumptions based on market data (observable inputs) and the Company’s assumptions (unobservable inputs). The hierarchy consists of three levels:
	Level 1 — Quoted market prices in active markets for identical assets and liabilities;
	Level 2 — Inputs other than Level 1 inputs that are either directly or indirectly observable; and
	Level 3 — Unobservable inputs developed using estimates and assumptions developed by the Company, which reflect those that a market participant would use.
	The following table summarizes the financial instruments measured at fair value in the Consolidated Balance Sheets as of September 26, 2014:
				Fair Value Measurements
	(Thousands)	Total		Quoted Prices		Significant		Significant
				in  Active		Other		Unobservable
				Markets  for		Observable		Inputs
				Identical		Inputs		(Level 3)
				Assets		(Level 2)
				(Level  1)
	Financial Assets
	Directors’ deferred compensation investments	$	381	$	381	$	—	$	—
	Foreign currency forward contracts	2,379		—		2,379		—
	Total	$	2,760	$	381	$	2,379	$	—
	Financial Liabilities
	Directors’ deferred compensation liability	$	381	$	381	$	—	$	—
	Foreign currency forward contracts	—		—		—		—
	Total	$	381	$	381	$	—	$	—
	The Company uses a market approach to value the assets and liabilities for outstanding derivative contracts in the table above. Outstanding contracts are valued through models that utilize market observable inputs including both spot and forward prices for the same underlying currencies and metals. The carrying values of the other working capital items and debt on the Consolidated Balance Sheets approximate their fair values as of September 26, 2014.

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activity	9 Months Ended
	Sep. 26, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activity	'
	Derivative Instruments and Hedging Activity
	The Company uses derivative contracts to hedge portions of its foreign currency and precious metal exposures. The objectives for using derivatives in these areas are as follows:
	Foreign Currency. The Company sells products to overseas customers in their local currencies, primarily the euro and yen. The Company uses foreign currency derivatives, mainly forward contracts and options, to hedge these anticipated sales transactions. The purpose of the hedge program is to protect against the reduction in dollar value of the foreign currency sales from adverse exchange rate movements. Should the dollar strengthen significantly, the decrease in the translated value of the foreign currency sales should be partially offset by gains on the hedge contracts. Depending upon the methods used, the hedge contract may limit the benefits from a weakening U.S. dollar.
	The use of forward contracts locks in a firm rate and eliminates any downside from an adverse rate movement as well as any benefit from a favorable rate movement. The Company may from time to time choose to hedge with options or a tandem of options known as a collar. These hedging techniques can limit or eliminate the downside risk but can allow for some or all of the benefit from a favorable rate movement to be realized. Unlike a forward contract, a premium is paid for an option; collars, which are a combination of a put and call option, may have a net premium but they can be structured to be cash neutral. The Company will primarily hedge with forward contracts due to the relationship between the cash outlay and the level of risk.
	The use of foreign currency derivative contracts is governed by policies approved by the Audit Committee of the Board of Directors. A team consisting of senior financial managers reviews the estimated exposure levels, as defined by budgets, forecasts and other internal data, and determines the timing, amounts, and instruments to use to hedge that exposure within the confines of the policy. Management analyzes the effective hedged rates and the actual and projected gains and losses on the hedging transactions against the program objectives, targeted rates, and levels of risk assumed. Hedge contracts are typically layered in at different times for a specified exposure period in order to minimize the impact of rate movements.
	Precious Metals. The Company maintains the majority of its precious metal production requirements on consignment in order to reduce the working capital investment and the exposure to metal price movements. When a precious metal product is fabricated and ready for shipment to the customer, the metal is purchased out of consignment at the current market price and that price forms the basis for the price to be charged to the customer.
	In certain circumstances, a customer may want to establish the price for the precious metal when the sales order is placed rather than at the time of the shipment. Setting the selling price at a different date than when the material would be purchased potentially creates an exposure to movements in the market price of the metal. Therefore, in these limited situations, the Company may elect to enter into a forward contract to purchase a stated quantity of precious metal at a fixed price on a specified date in the future. The price in the forward contract serves as the basis for the price to be charged to the customer. By so doing, the selling and purchase prices are matched, and the Company’s market price exposure is reduced.
	The Company refines precious metal-containing materials for its customers and typically will purchase the refined metal from the customer at current market prices. In limited circumstances, the customer may want to fix the price to be paid at the time of the order as opposed to when the material is refined. The customer may also want to fix the price to be paid for a number of orders over a period of time. The Company may then enter into a hedge contract, either a forward contract or a swap, to fix the price for the estimated quantity of refined metal to be purchased thereby reducing the exposure to adverse movements in the market price of the metal.
	The Company will only enter into a derivative contract if there is an underlying identified exposure. Contracts are typically held until maturity. The Company does not engage in derivative trading activities and does not use derivatives for speculative purposes. The Company only uses currency hedge contracts that are denominated in the same currency as the underlying exposure and precious metal hedge contracts denominated in the same metal as the underlying exposure.
	All derivatives are recorded on the balance sheet at their fair values. If the derivative is designated and effective as a cash flow hedge, changes in the fair value of the derivative are recognized in other comprehensive income (OCI) until the hedged item is recognized in earnings. The ineffective portion of a derivative’s fair value, if any, is recognized in earnings immediately. If a derivative is not a hedge, changes in the fair value are adjusted through income. The fair values of the outstanding derivatives are recorded on the balance sheet as assets (if the derivatives are in a gain position) or liabilities (if the derivatives are in a loss position). The fair values will also be classified as short-term or long-term depending upon their maturity dates.
	The outstanding foreign currency forward contracts had a notional value of $39.0 million as of September 26, 2014. All of these contracts were designated and effective as cash flow hedges. The net fair value of the outstanding contracts was $2.4 million, with the asset recorded in prepaid expenses and other assets on the Consolidated Balance Sheets as of September 26, 2014.
	There was no ineffectiveness associated with the contracts outstanding at September 26, 2014, and no ineffectiveness expense was recorded in the third quarter or first nine months of 2014 or 2013.
	Changes in the fair value of outstanding cash flow hedges recorded in OCI totaled $2.4 million at September 26, 2014 and $0.1 million at September 27, 2013. The Company expects to relieve substantially the entire balance in OCI as of September 26, 2014 to income on the Consolidated Statements of Income during the twelve-month period beginning September 27, 2014. See Note L to the Consolidated Financial Statements for additional OCI details.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 26, 2014
Equity [Abstract]	'
Accumulated Other Comprehensive Income	'
	Accumulated Other Comprehensive Income
	Changes in the components of accumulated other comprehensive income, including the amounts reclassified out, for the third quarter and first nine months of 2014 and 2013 are as follows:
		Gains and Losses
		On Cash Flow Hedges
	(Thousands)	Foreign Currency			Precious Metals			Total			Pension and Post Employment Benefits			Foreign Currency Translation			Total
	Accumulated other comprehensive income, as of June 27, 2014
	Gross	$	31		$	—		$	31		$	(61,597	)	$	1,002		$	(60,564	)
	Deferred tax expense (benefit)	(1,390		)	—			(1,390		)	(10,013		)	—			(11,403		)
	Net	$	1,421		$	—		$	1,421		$	(51,584	)	$	1,002		$	(49,161	)
	Third quarter 2014 activity
	Other comprehensive income (loss) before reclassifications	$	2,365		$	—		$	2,365		$	—		$	(2,170	)	$	195
	Amounts reclassified from accumulated other comprehensive income	(17		)	—			(17		)	833			—			816
	Net current period other comprehensive income (loss) before tax	2,348			—			2,348			833			(2,170		)	1,011
	Deferred taxes on current period activity	868			—			868			293			—			1,161
	Net current period other comprehensive income (loss) after tax	$	1,480		$	—		$	1,480		$	540		$	(2,170	)	$	(150	)
	Accumulated other comprehensive income, as of September 26, 2014
	Gross	$	2,379		$	—		$	2,379		$	(60,764	)	$	(1,168	)	$	(59,553	)
	Deferred tax expense (benefit)	(522		)	—			(522		)	(9,720		)	—			(10,242		)
	Net	$	2,901		$	—		$	2,901		$	(51,044	)	$	(1,168	)	$	(49,311	)
	Accumulated other comprehensive income, as of December 31, 2013
	Gross	$	(87	)	$	(19	)	$	(106	)	$	(77,301	)	$	287		$	(77,120	)
	Deferred tax expense (benefit)	(1,433		)	(7		)	(1,440		)	(15,792		)	—			(17,232		)
	Net	$	1,346		$	(12	)	$	1,334		$	(61,509	)	$	287		$	(59,888	)
	First nine months of 2014 activity
	Other comprehensive income (loss) before reclassifications	$	2,357		$	—		$	2,357		$	14,034		$	(1,455	)	$	14,936
	Amounts reclassified from accumulated other comprehensive income	109			19			128			2,503			—			2,631
	Net current period other comprehensive income (loss) before tax	2,466			19			2,485			16,537			(1,455		)	17,567
	Deferred taxes on current period activity	911			7			918			6,072			—			6,990
	Net current period other comprehensive income (loss) after tax	$	1,555		$	12		$	1,567		$	10,465		$	(1,455	)	$	10,577
	Accumulated other comprehensive income, as of September 26, 2014
	Gross	$	2,379		$	—		$	2,379		$	(60,764	)	$	(1,168	)	$	(59,553	)
	Deferred tax expense (benefit)	(522		)	—			(522		)	(9,720		)	—			(10,242		)
	Net	$	2,901		$	—		$	2,901		$	(51,044	)	$	(1,168	)	$	(49,311	)
	Accumulated other comprehensive income, as of June 28, 2013
	Gross	$	553		$	23		$	576		$	(123,789	)	$	697		$	(122,516	)
	Deferred tax expense (benefit)	(1,209		)	—			(1,209		)	(32,091		)	—			(33,300		)
	Net	$	1,762		$	23		$	1,785		$	(91,698	)	$	697		$	(89,216	)
	Third quarter 2013 activity
	Other comprehensive income (loss) before reclassifications	$	(254	)	$	—		$	(254	)	$	—		$	478		$	224
	Amounts reclassified from accumulated other comprehensive income	(369		)	(23		)	(392		)	1,895			—			1,503
	Net current period other comprehensive income (loss) before tax	(623		)	(23		)	(646		)	1,895			478			1,727
	Deferred taxes on current period activity	(218		)	—			(218		)	663			—			445
	Net current period other comprehensive income (loss) after tax	$	(405	)	$	(23	)	$	(428	)	$	1,232		$	478		$	1,282
	Accumulated other comprehensive income, as of September 27, 2013
	Gross	$	(70	)	$	—		$	(70	)	$	(121,894	)	$	1,175		$	(120,789	)
	Deferred tax expense (benefit)	(1,427		)	—			(1,427		)	(31,428		)	—			(32,855		)
	Net	$	1,357		$	—		$	1,357		$	(90,466	)	$	1,175		$	(87,934	)
	Accumulated other comprehensive income, as of December 31, 2012
	Gross	$	253		$	97		$	350		$	(127,541	)	$	4,077		$	(123,114	)
	Deferred tax expense (benefit)	(1,314		)	34			(1,280		)	(33,405		)	—			(34,685		)
	Net	$	1,567		$	63		$	1,630		$	(94,136	)	$	4,077		$	(88,429	)
	First nine months of 2013 activity
	Other comprehensive income (loss) before reclassifications	$	618		$	—		$	618		$	—		$	(2,902	)	$	(2,284	)
	Amounts reclassified from accumulated other comprehensive income	(941		)	(97		)	(1,038		)	5,647			—			4,609
	Net current period other comprehensive income (loss) before tax	(323		)	(97		)	(420		)	5,647			(2,902		)	2,325
	Deferred taxes on current period activity	(113		)	(34		)	(147		)	1,977			—			1,830
	Net current period other comprehensive income (loss) after tax	$	(210	)	$	(63	)	$	(273	)	$	3,670		$	(2,902	)	$	495
	Accumulated other comprehensive income, as of September 27, 2013
	Gross	$	(70	)	$	—		$	(70	)	$	(121,894	)	$	1,175		$	(120,789	)
	Deferred tax expense (benefit)	(1,427		)	—			(1,427		)	(31,428		)	—			(32,855		)
	Net	$	1,357		$	—		$	1,357		$	(90,466	)	$	1,175		$	(87,934	)
	Reclassifications from accumulated other comprehensive income of gains and losses on foreign currency cash flow hedges are recorded in Other-net on the Consolidated Statements of Income while the gains and losses on precious metal cash flow hedges are recorded in Cost of sales on the Consolidated Statements of Income. See Note K to the Consolidated Financial Statements for additional details on cash flow hedges.
	Reclassifications from accumulated other comprehensive income for pension and post employment benefits are included in the computation of the net periodic pension and post employment benefit expense. See Note C to the Consolidated Financial Statements for additional details on pension and post employment expenses.

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 26, 2014
Inventory Disclosure [Abstract]	'
Summary of Inventories	'
	Inventories on the Consolidated Balance Sheets are summarized as follows:
	(Thousands)	Sept. 26,		Dec. 31,
		2014		2013
	Principally average cost:
	Raw materials and supplies	$	40,845	$	39,201
	Work in process	150,140		152,645
	Finished goods	36,301		40,954
	Net inventories	$	227,286	$	232,800

Pensions_and_Other_Postemploym1

Pensions and Other Post-employment Benefits (Tables)	9 Months Ended
	Sep. 26, 2014
Compensation and Retirement Disclosure [Abstract]	'
Components of Net Periodic Benefit Cost	'
	The following is a summary of the net periodic benefit cost for the third quarter and first nine months of 2014 and 2013 for the domestic pension plans (which include the defined benefit pension plan and the supplemental retirement plans) and the domestic retiree medical plan.
		Pension Benefits						Other Benefits
		Third Quarter Ended						Third Quarter Ended
	(Thousands)	Sept. 26, 2014			Sept. 27, 2013			Sept. 26, 2014			Sept. 27, 2013
	Components of net periodic benefit cost
	Service cost	$	1,931		$	2,356		$	34		$	76
	Interest cost	2,449			2,353			169			311
	Expected return on plan assets	(3,013		)	(2,996		)	—			—
	Amortization of prior service cost (benefit)	(109		)	(85		)	(374		)	29
	Amortization of net loss	1,275			1,951			—			—
	Net periodic benefit cost (benefit)	$	2,533		$	3,579		$	(171	)	$	416
		Pension Benefits						Other Benefits
		Nine Months Ended						Nine Months Ended
	(Thousands)	Sept. 26, 2014			Sept. 27, 2013			Sept. 26, 2014			Sept. 27, 2013
	Components of net periodic benefit cost
	Service cost	$	5,794		$	7,066		$	103		$	229
	Interest cost	7,345			7,060			506			932
	Expected return on plan assets	(9,038		)	(8,989		)	—			—
	Amortization of prior service cost (benefit)	(326		)	(255		)	(1,123		)	86
	Amortization of net loss	3,825			5,816			—			—
	Net periodic benefit cost	$	7,600		$	10,698		$	(514	)	$	1,247

Segment_Reporting_Tables

Segment Reporting (Tables)	9 Months Ended
	Sep. 26, 2014
Segment Reporting [Abstract]	'
Segment Reporting	'
	(Thousands)	Advanced		Performance		Beryllium and			Technical		Subtotal		All			Total
		Material		Alloys		Composites			Materials				Other
		Technologies
	Third Quarter 2014
	Sales to external customers	$	177,483	$	80,863	$	17,946		$	15,278	$	291,570	$	—		$	291,570
	Intersegment sales	1,895		473		110			100		2,578		—			2,578
	Operating profit (loss)	7,691		6,529		992			1,445		16,657		764			17,421
	Third Quarter 2013
	Sales to external customers	$	176,294	$	69,578	$	13,685		$	15,877	$	275,434	$	—		$	275,434
	Intersegment sales	523		443		67			156		1,189		—			1,189
	Operating profit (loss)	4,146		4,520		(3,306		)	1,421		6,781		(1,453		)	5,328
	First Nine Months 2014
	Sales to external customers	$	519,793	$	224,289	$	50,041		$	44,342	$	838,465	$	—		$	838,465
	Intersegment sales	2,971		1,475		420			319		5,185		—			5,185
	Operating profit (loss)	26,790		15,307		282			2,586		44,965		(1,923		)	43,042
	Assets	280,208		275,778		147,537			22,965		726,488		40,320			766,808
	First Nine Months 2013
	Sales to external customers	$	566,158	$	218,435	$	42,194		$	53,957	$	880,744	$	—		$	880,744
	Intersegment sales	2,048		1,484		200			600		4,332		—			4,332
	Operating profit (loss)	5,211		18,654		(3,780		)	5,246		25,331		(3,920		)	21,411
	Assets	312,110		267,232		142,183			23,734		745,259		55,854			801,113

Othernet_Tables

Other-net (Tables)	9 Months Ended
	Sep. 26, 2014
Other Income and Expenses [Abstract]	'
Summary of Other-Net Expense	'
	Other-net income (expense) for the third quarter and first nine months of 2014 and 2013 is summarized as follows:
		Third Quarter Ended						Nine Months Ended
		Sept. 26			Sept. 27			Sept. 26			Sept. 27
	(Thousands)	2014			2013			2014			2013
	Foreign currency exchange gain (loss)	$	450		$	126		$	(25	)	$	1,271
	Amortization of intangible assets	(1,208		)	(1,359		)	(3,841		)	(4,001		)
	Metal consignment fees	(1,770		)	(1,640		)	(5,481		)	(5,158		)
	Net gain (loss) on disposal of fixed assets	(225		)	(252		)	2,384			(251		)
	Recovery from insurance	—			—			6,750			—
	Legal settlement	4,000			—			4,000			—
	Other items	(603		)	(1,036		)	(610		)	(1,453		)
	Total	$	644		$	(4,161	)	$	3,177		$	(9,592	)

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 26, 2014
Fair Value Disclosures [Abstract]	'
Summary of Fair Value Information and Derivative Financial Instruments	'
	The following table summarizes the financial instruments measured at fair value in the Consolidated Balance Sheets as of September 26, 2014:
				Fair Value Measurements
	(Thousands)	Total		Quoted Prices		Significant		Significant
				in  Active		Other		Unobservable
				Markets  for		Observable		Inputs
				Identical		Inputs		(Level 3)
				Assets		(Level 2)
				(Level  1)
	Financial Assets
	Directors’ deferred compensation investments	$	381	$	381	$	—	$	—
	Foreign currency forward contracts	2,379		—		2,379		—
	Total	$	2,760	$	381	$	2,379	$	—
	Financial Liabilities
	Directors’ deferred compensation liability	$	381	$	381	$	—	$	—
	Foreign currency forward contracts	—		—		—		—
	Total	$	381	$	381	$	—	$	—

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 26, 2014
Equity [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	Changes in the components of accumulated other comprehensive income, including the amounts reclassified out, for the third quarter and first nine months of 2014 and 2013 are as follows:
		Gains and Losses
		On Cash Flow Hedges
	(Thousands)	Foreign Currency			Precious Metals			Total			Pension and Post Employment Benefits			Foreign Currency Translation			Total
	Accumulated other comprehensive income, as of June 27, 2014
	Gross	$	31		$	—		$	31		$	(61,597	)	$	1,002		$	(60,564	)
	Deferred tax expense (benefit)	(1,390		)	—			(1,390		)	(10,013		)	—			(11,403		)
	Net	$	1,421		$	—		$	1,421		$	(51,584	)	$	1,002		$	(49,161	)
	Third quarter 2014 activity
	Other comprehensive income (loss) before reclassifications	$	2,365		$	—		$	2,365		$	—		$	(2,170	)	$	195
	Amounts reclassified from accumulated other comprehensive income	(17		)	—			(17		)	833			—			816
	Net current period other comprehensive income (loss) before tax	2,348			—			2,348			833			(2,170		)	1,011
	Deferred taxes on current period activity	868			—			868			293			—			1,161
	Net current period other comprehensive income (loss) after tax	$	1,480		$	—		$	1,480		$	540		$	(2,170	)	$	(150	)
	Accumulated other comprehensive income, as of September 26, 2014
	Gross	$	2,379		$	—		$	2,379		$	(60,764	)	$	(1,168	)	$	(59,553	)
	Deferred tax expense (benefit)	(522		)	—			(522		)	(9,720		)	—			(10,242		)
	Net	$	2,901		$	—		$	2,901		$	(51,044	)	$	(1,168	)	$	(49,311	)
	Accumulated other comprehensive income, as of December 31, 2013
	Gross	$	(87	)	$	(19	)	$	(106	)	$	(77,301	)	$	287		$	(77,120	)
	Deferred tax expense (benefit)	(1,433		)	(7		)	(1,440		)	(15,792		)	—			(17,232		)
	Net	$	1,346		$	(12	)	$	1,334		$	(61,509	)	$	287		$	(59,888	)
	First nine months of 2014 activity
	Other comprehensive income (loss) before reclassifications	$	2,357		$	—		$	2,357		$	14,034		$	(1,455	)	$	14,936
	Amounts reclassified from accumulated other comprehensive income	109			19			128			2,503			—			2,631
	Net current period other comprehensive income (loss) before tax	2,466			19			2,485			16,537			(1,455		)	17,567
	Deferred taxes on current period activity	911			7			918			6,072			—			6,990
	Net current period other comprehensive income (loss) after tax	$	1,555		$	12		$	1,567		$	10,465		$	(1,455	)	$	10,577
	Accumulated other comprehensive income, as of September 26, 2014
	Gross	$	2,379		$	—		$	2,379		$	(60,764	)	$	(1,168	)	$	(59,553	)
	Deferred tax expense (benefit)	(522		)	—			(522		)	(9,720		)	—			(10,242		)
	Net	$	2,901		$	—		$	2,901		$	(51,044	)	$	(1,168	)	$	(49,311	)
	Accumulated other comprehensive income, as of June 28, 2013
	Gross	$	553		$	23		$	576		$	(123,789	)	$	697		$	(122,516	)
	Deferred tax expense (benefit)	(1,209		)	—			(1,209		)	(32,091		)	—			(33,300		)
	Net	$	1,762		$	23		$	1,785		$	(91,698	)	$	697		$	(89,216	)
	Third quarter 2013 activity
	Other comprehensive income (loss) before reclassifications	$	(254	)	$	—		$	(254	)	$	—		$	478		$	224
	Amounts reclassified from accumulated other comprehensive income	(369		)	(23		)	(392		)	1,895			—			1,503
	Net current period other comprehensive income (loss) before tax	(623		)	(23		)	(646		)	1,895			478			1,727
	Deferred taxes on current period activity	(218		)	—			(218		)	663			—			445
	Net current period other comprehensive income (loss) after tax	$	(405	)	$	(23	)	$	(428	)	$	1,232		$	478		$	1,282
	Accumulated other comprehensive income, as of September 27, 2013
	Gross	$	(70	)	$	—		$	(70	)	$	(121,894	)	$	1,175		$	(120,789	)
	Deferred tax expense (benefit)	(1,427		)	—			(1,427		)	(31,428		)	—			(32,855		)
	Net	$	1,357		$	—		$	1,357		$	(90,466	)	$	1,175		$	(87,934	)
	Accumulated other comprehensive income, as of December 31, 2012
	Gross	$	253		$	97		$	350		$	(127,541	)	$	4,077		$	(123,114	)
	Deferred tax expense (benefit)	(1,314		)	34			(1,280		)	(33,405		)	—			(34,685		)
	Net	$	1,567		$	63		$	1,630		$	(94,136	)	$	4,077		$	(88,429	)
	First nine months of 2013 activity
	Other comprehensive income (loss) before reclassifications	$	618		$	—		$	618		$	—		$	(2,902	)	$	(2,284	)
	Amounts reclassified from accumulated other comprehensive income	(941		)	(97		)	(1,038		)	5,647			—			4,609
	Net current period other comprehensive income (loss) before tax	(323		)	(97		)	(420		)	5,647			(2,902		)	2,325
	Deferred taxes on current period activity	(113		)	(34		)	(147		)	1,977			—			1,830
	Net current period other comprehensive income (loss) after tax	$	(210	)	$	(63	)	$	(273	)	$	3,670		$	(2,902	)	$	495
	Accumulated other comprehensive income, as of September 27, 2013
	Gross	$	(70	)	$	—		$	(70	)	$	(121,894	)	$	1,175		$	(120,789	)
	Deferred tax expense (benefit)	(1,427		)	—			(1,427		)	(31,428		)	—			(32,855		)
	Net	$	1,357		$	—		$	1,357		$	(90,466	)	$	1,175		$	(87,934	)

Inventories_Summary_of_Invento

Inventories - Summary of Inventories (Detail) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Principally average cost:	'	'
Raw materials and supplies	$40,845	$39,201
Work in process	150,140	152,645
Finished goods	36,301	40,954
Net inventories	$227,286	$232,800

Inventories_Inventories_Detail

Inventories - Inventories (Details) (USD $)	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Dec. 31, 2013	Sep. 26, 2014	Dec. 31, 2013	Sep. 26, 2014	Jun. 27, 2014	Dec. 31, 2013
	oz	Prepaid Assets [Member]	Inventory [Member]	Inventory [Member]	Precious Metal-Denominated Loan [Member]	Precious Metal-Denominated Loan [Member]	Precious Metal-Denominated Loan [Member]
Inventory [Line Items]	'	'	'	'	'	'	'
Reclassification from prepaid assets to inventory	'	($19.40)	'	$19.40	'	'	'
Precious metal-denominated loan	'	'	'	'	'	31.3	28.7
Amount of gold transferred (in ounces)	23,781	'	'	'	'	'	'
Decrease in inventory related to transfer of gold in settlement of loan	'	'	-31.3	'	'	'	'
Extinguishment of precious-metals loan	'	'	'	'	$31.10	'	'

Pensions_and_Other_Postemploym2

Pensions and Other Post-employment Benefits - Components of Net Periodic Benefit Cost (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Pension Benefits [Member]	'	'	'	'
Components of net periodic benefit cost	'	'	'	'
Service cost	$1,931	$2,356	$5,794	$7,066
Interest cost	2,449	2,353	7,345	7,060
Expected return on plan assets	-3,013	-2,996	-9,038	-8,989
Amortization of prior service cost (benefit)	-109	-85	-326	-255
Amortization of net loss	1,275	1,951	3,825	5,816
Net periodic benefit cost (benefit)	2,533	3,579	7,600	10,698
Other Benefits [Member]	'	'	'	'
Components of net periodic benefit cost	'	'	'	'
Service cost	34	76	103	229
Interest cost	169	311	506	932
Expected return on plan assets	0	0	0	0
Amortization of prior service cost (benefit)	-374	29	-1,123	86
Amortization of net loss	0	0	0	0
Net periodic benefit cost (benefit)	($171)	$416	($514)	$1,247

Pensions_and_Other_Postemploym3

Pensions and Other Post-employment Benefits - Additional Information (Detail) (USD $)	9 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Mar. 28, 2014
	Pension Benefits [Member]	Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]	'	'
Domestic defined benefit pension plan	$15.80	'
Reduction in plan liability from changes in plan	'	$14

Contingencies_Additional_Infor

Contingencies - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Dec. 31, 2013
Loss Contingency [Abstract]	'	'
Annual deductible to cover defense and indemnity costs incurred	$1	'
Settlement amount for CBD case	0.1	'
Undiscounted reserve balance	4.8	4.8
Cash received from settlement agreement	$4	'

Segment_Reporting_Detail

Segment Reporting (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	$291,570	$275,434	$838,465	$880,744	'
Intersegment sales	2,578	1,189	5,185	4,332	'
Operating profit (loss)	17,421	5,328	43,042	21,411	'
Assets	766,808	801,113	766,808	801,113	777,945
Subtotal [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	291,570	275,434	838,465	880,744	'
Intersegment sales	2,578	1,189	5,185	4,332	'
Operating profit (loss)	16,657	6,781	44,965	25,331	'
Assets	726,488	745,259	726,488	745,259	'
Advanced Material Technologies [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	177,483	176,294	519,793	566,158	'
Intersegment sales	1,895	523	2,971	2,048	'
Operating profit (loss)	7,691	4,146	26,790	5,211	'
Assets	280,208	312,110	280,208	312,110	'
Performance Alloys [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	80,863	69,578	224,289	218,435	'
Intersegment sales	473	443	1,475	1,484	'
Operating profit (loss)	6,529	4,520	15,307	18,654	'
Assets	275,778	267,232	275,778	267,232	'
Beryllium and Composites [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	17,946	13,685	50,041	42,194	'
Intersegment sales	110	67	420	200	'
Operating profit (loss)	992	-3,306	282	-3,780	'
Assets	147,537	142,183	147,537	142,183	'
Technical Materials [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	15,278	15,877	44,342	53,957	'
Intersegment sales	100	156	319	600	'
Operating profit (loss)	1,445	1,421	2,586	5,246	'
Assets	22,965	23,734	22,965	23,734	'
All Other [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales to external customers	0	0	0	0	'
Intersegment sales	0	0	0	0	'
Operating profit (loss)	764	-1,453	-1,923	-3,920	'
Assets	$40,320	$55,854	$40,320	$55,854	'

Stockbased_Compensation_Expens1

Stock-based Compensation Expense - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Mar. 28, 2014	Sep. 26, 2014	Sep. 27, 2013	Jun. 27, 2014	Sep. 26, 2014	Sep. 27, 2013	Jun. 27, 2014
					Performance Restricted Stock [Member]	Stock Options [Member]	Stock Options [Member]	Stock Appreciation Rights [Member]	Stock Appreciation Rights [Member]	Stock Appreciation Rights [Member]	Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Stock-based compensation expense	$1.10	$1.40	$4.10	$4.10	'	'	'	'	'	'	'
Stock appreciation rights to employees	'	'	'	'	25	'	'	144	'	'	38
Strike price of units	'	'	'	'	'	'	'	$33.29	'	'	$33.29
Fair value grant date per unit	'	'	'	'	$26.02	'	'	$12.48	'	'	'
Stock appreciation rights vested period	'	'	'	'	'3 years	'	'	'3 years	'	'	'3 years
Expiration term of units	'	'	'	'	'	'	'	'7 years	'	'	'
Total cash received from the exercise of stock options	'	'	'	'	'	$0.40	$1.10	'	'	'	'
Number of stock options	'	'	'	'	'	21	69	'	'	'	'
Number of SARs exercised	'	'	'	'	'	'	'	'	50	120	'

Othernet_Summary_of_OtherNet_E

Other-net - Summary of Other-Net Expense (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Other Income and Expenses [Abstract]	'	'	'	'
Foreign currency exchange gain (loss)	$450	$126	($25)	$1,271
Amortization of intangible assets	-1,208	-1,359	-3,841	-4,001
Metal consignment fees	-1,770	-1,640	-5,481	-5,158
Net gain (loss) on disposal of fixed assets	-225	-252	2,384	-251
Recovery from insurance	0	0	6,750	0
Legal settlement	4,000	0	4,000	0
Other items	-603	-1,036	-610	-1,453
Total	$644	($4,161)	$3,177	($9,592)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Jun. 28, 2013	Sep. 26, 2014	Sep. 27, 2013
Income Tax Contingency [Line Items]	'	'	'	'	'
Tax expense (benefit)	$4,217,000	($379,000)	'	$11,165,000	$3,123,000
Rate against income before income taxes	25.30%	-8.20%	'	27.30%	16.40%
Net favorable discrete items included in tax expense	600,000	'	'	'	'
Discrete income tax charge	'	'	1,300,000	'	'
Deferred Tax Asset [Member]	'	'	'	'	'
Income Tax Contingency [Line Items]	'	'	'	'	'
Adjustment to deferred tax assets	2,000,000	'	'	'	'
Goodwill [Member]	'	'	'	'	'
Income Tax Contingency [Line Items]	'	'	'	'	'
Adjustment to deferred tax assets	$2,000,000	'	'	'	'

Depreciation_and_Amortization_

Depreciation and Amortization - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013
Property, Plant and Equipment [Abstract]	'	'
Reimbursements	$63,500,000	'
Depreciation expense	3,500,000	'
Unearned income	3,500,000	'
Credit to cost of sales for reduction in unearned income	3,500,000	'
Depreciation, depletion and amortization depicted on Consolidated Statement of Cash Flows	32,333,000	30,842,000
Depreciation, depletion and amortization expense recorded in operating profit	$29,700,000	$29,000,000

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Summary of Fair Value Information and Derivative Financial Instruments (Detail) (USD $)	Sep. 26, 2014
In Thousands, unless otherwise specified
Financial Assets	'
Assets Fair Value Disclosure	$2,760
Financial Liabilities	'
Liabilities Fair Value Disclosure	381
Directors' deferred compensation investments [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	381
Financial Liabilities	'
Liabilities Fair Value Disclosure	381
Foreign currency forward contracts [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	2,379
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 1 [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	381
Financial Liabilities	'
Liabilities Fair Value Disclosure	381
Fair Value, Inputs, Level 1 [Member] | Directors' deferred compensation investments [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	381
Financial Liabilities	'
Liabilities Fair Value Disclosure	381
Fair Value, Inputs, Level 1 [Member] | Foreign currency forward contracts [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	0
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 2 [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	2,379
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 2 [Member] | Directors' deferred compensation investments [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	0
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 2 [Member] | Foreign currency forward contracts [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	2,379
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 3 [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	0
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 3 [Member] | Directors' deferred compensation investments [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	0
Financial Liabilities	'
Liabilities Fair Value Disclosure	0
Fair Value, Inputs, Level 3 [Member] | Foreign currency forward contracts [Member]	'
Financial Assets	'
Assets Fair Value Disclosure	0
Financial Liabilities	'
Liabilities Fair Value Disclosure	$0

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activity - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Ineffective expense	$0	$0	$0	$0
Foreign exchange forward [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Notional value of foreign currency forward contracts	39,000,000	'	39,000,000	'
Fair value of contracts	2,400,000	'	2,400,000	'
Cash Flow Hedging [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Fair value of contracts	$2,400,000	$100,000	$2,400,000	$100,000

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Jun. 27, 2014	Dec. 31, 2013	Jun. 28, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Rollward]	'	'	'	'	'	'	'	'
Gross	($59,553)	($120,789)	($59,553)	($120,789)	($60,564)	($77,120)	($122,516)	($123,114)
Deferred tax (benefit)	-10,242	-32,855	-10,242	-32,855	-11,403	-17,232	-33,300	-34,685
Net	-49,311	-87,934	-49,311	-87,934	-49,161	-59,888	-89,216	-88,429
Activity	'	'	'	'	'	'	'	'
Other comprehensive income (loss) before reclassifications	195	224	14,936	-2,284	'	'	'	'
Amounts reclassified from accumulated other comprehensive income	816	1,503	2,631	4,609	'	'	'	'
Net current period other comprehensive income (loss) before tax	1,011	1,727	17,567	2,325	'	'	'	'
Deferred taxes on current period activity	1,161	445	6,990	1,830	'	'	'	'
Net change in accumulated other comprehensive income	-150	1,282	10,577	495	'	'	'	'
Gains and Losses On Cash Flow Hedges [Member]	'	'	'	'	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Rollward]	'	'	'	'	'	'	'	'
Gross	2,379	-70	2,379	-70	31	-106	576	350
Deferred tax (benefit)	-522	-1,427	-522	-1,427	-1,390	-1,440	-1,209	-1,280
Net	2,901	1,357	2,901	1,357	1,421	1,334	1,785	1,630
Activity	'	'	'	'	'	'	'	'
Other comprehensive income (loss) before reclassifications	2,365	-254	2,357	618	'	'	'	'
Amounts reclassified from accumulated other comprehensive income	-17	-392	128	-1,038	'	'	'	'
Net current period other comprehensive income (loss) before tax	2,348	-646	2,485	-420	'	'	'	'
Deferred taxes on current period activity	868	-218	918	-147	'	'	'	'
Net change in accumulated other comprehensive income	1,480	-428	1,567	-273	'	'	'	'
Pension and Post Employment Benefits [Member]	'	'	'	'	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Rollward]	'	'	'	'	'	'	'	'
Gross	-60,764	-121,894	-60,764	-121,894	-61,597	-77,301	-123,789	-127,541
Deferred tax (benefit)	-9,720	-31,428	-9,720	-31,428	-10,013	-15,792	-32,091	-33,405
Net	-51,044	-90,466	-51,044	-90,466	-51,584	-61,509	-91,698	-94,136
Activity	'	'	'	'	'	'	'	'
Other comprehensive income (loss) before reclassifications	0	0	14,034	0	'	'	'	'
Amounts reclassified from accumulated other comprehensive income	833	1,895	2,503	5,647	'	'	'	'
Net current period other comprehensive income (loss) before tax	833	1,895	16,537	5,647	'	'	'	'
Deferred taxes on current period activity	293	663	6,072	1,977	'	'	'	'
Net change in accumulated other comprehensive income	540	1,232	10,465	3,670	'	'	'	'
Foreign Currency Translation [Member]	'	'	'	'	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Rollward]	'	'	'	'	'	'	'	'
Gross	-1,168	1,175	-1,168	1,175	1,002	287	697	4,077
Deferred tax (benefit)	0	0	0	0	0	0	0	0
Net	-1,168	1,175	-1,168	1,175	1,002	287	697	4,077
Activity	'	'	'	'	'	'	'	'
Other comprehensive income (loss) before reclassifications	-2,170	478	-1,455	-2,902	'	'	'	'
Amounts reclassified from accumulated other comprehensive income	0	0	0	0	'	'	'	'
Net current period other comprehensive income (loss) before tax	-2,170	478	-1,455	-2,902	'	'	'	'
Deferred taxes on current period activity	0	0	0	0	'	'	'	'
Net change in accumulated other comprehensive income	-2,170	478	-1,455	-2,902	'	'	'	'
Foreign Currency [Member] | Gains and Losses On Cash Flow Hedges [Member]	'	'	'	'	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Rollward]	'	'	'	'	'	'	'	'
Gross	2,379	-70	2,379	-70	31	-87	553	253
Deferred tax (benefit)	-522	-1,427	-522	-1,427	-1,390	-1,433	-1,209	-1,314
Net	2,901	1,357	2,901	1,357	1,421	1,346	1,762	1,567
Activity	'	'	'	'	'	'	'	'
Other comprehensive income (loss) before reclassifications	2,365	-254	2,357	618	'	'	'	'
Amounts reclassified from accumulated other comprehensive income	-17	-369	109	-941	'	'	'	'
Net current period other comprehensive income (loss) before tax	2,348	-623	2,466	-323	'	'	'	'
Deferred taxes on current period activity	868	-218	911	-113	'	'	'	'
Net change in accumulated other comprehensive income	1,480	-405	1,555	-210	'	'	'	'
Precious Metals [Member] | Gains and Losses On Cash Flow Hedges [Member]	'	'	'	'	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Rollward]	'	'	'	'	'	'	'	'
Gross	0	0	0	0	0	-19	23	97
Deferred tax (benefit)	0	0	0	0	0	-7	0	34
Net	0	0	0	0	0	-12	23	63
Activity	'	'	'	'	'	'	'	'
Other comprehensive income (loss) before reclassifications	0	0	0	0	'	'	'	'
Amounts reclassified from accumulated other comprehensive income	0	-23	19	-97	'	'	'	'
Net current period other comprehensive income (loss) before tax	0	-23	19	-97	'	'	'	'
Deferred taxes on current period activity	0	0	7	-34	'	'	'	'
Net change in accumulated other comprehensive income	$0	($23)	$12	($63)	'	'	'	'