Mueller Industries (MLI) 10-Q 25 Jul 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 28, 2014	Jul. 22, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'MUELLER INDUSTRIES INC	'
Entity Central Index Key	'0000089439	'
Current Fiscal Year End Date	'--12-27	'
Entity Well-known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	56,712,056
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	28-Jun-14	'

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $)	3 Months Ended				6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 28, 2014		Jun. 29, 2013		Jun. 28, 2014		Jun. 29, 2013
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) [Abstract]	'		'		'		'
Net sales	$649,691		$582,282		$1,224,065		$1,141,972
Cost of goods sold	557,775		501,125		1,053,552		983,975
Depreciation and amortization	8,592		8,328		16,699		16,482
Selling, general, and administrative expense	35,120		34,814		67,303		66,157
Insurance settlement	0		-106,332		0		-106,332
Operating income	48,204		144,347		86,511		181,690
Interest expense	-1,457		-1,101		-2,483		-1,697
Other income, net	127		319		215		3,482
Income before income taxes	46,874		143,565		84,243		183,475
Income tax expense	-11,665		-51,723		-24,080		-65,199
Consolidated net income	35,209		91,842		60,163		118,276
Net income attributable to noncontrolling interest	-164		-692		-412		-924
Net income attributable to Mueller Industries, Inc.	$35,045		$91,150		$59,751		$117,352
Weighted average shares for basic earnings per share (in shares)	55,973	[1]	55,681	[1]	55,946	[1]	55,663	[1]
Effect of dilutive stock-based awards (in shares)	747	[1]	740	[1]	800	[1]	744	[1]
Adjusted weighted average shares for diluted earnings per share (in shares)	56,720	[1]	56,421	[1]	56,746	[1]	56,407	[1]
Basic earnings per share (in dollars per share)	$0.63	[1]	$1.64	[1]	$1.07	[1]	$2.11	[1]
Diluted earnings per share (in dollars per share)	$0.62	[1]	$1.62	[1]	$1.05	[1]	$2.08	[1]
Dividends per share (in dollars per share)	$0.08	[1]	$0.06	[1]	$0.15	[1]	$0.13	[1]
[1]	Adjusted retroactively to reflect the two-for-one stock split that occurred on March 14, 2014.

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014		Jun. 29, 2013		Jun. 28, 2014		Jun. 29, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]	'		'		'		'
Consolidated net income	$35,209		$91,842		$60,163		$118,276
Other comprehensive income (loss), net of tax:	'		'		'		'
Foreign currency translation	1,795		-644		2,962		-5,968
Net change with respect to derivative instruments and hedging activities	-360	[1]	2,198	[2]	-1,476	[3]	474	[4]
Net actuarial (gain) loss on pension and postretirement obligations	-159	[5]	622	[6]	-156	[7]	2,161	[8]
Other, net	24		42		9		83
Total other comprehensive income (loss)	1,300		2,218		1,339		-3,250
Consolidated comprehensive income	36,509		94,060		61,502		115,026
Comprehensive income (loss) attributable to noncontrolling interest	594		-1,228		341		-1,427
Comprehensive income attributable to Mueller Industries, Inc.	$37,103		$92,832		$61,843		$113,599
[1]	Net of tax of $275
[2]	Net of tax of $(1,308)
[3]	Net of tax of $865
[4]	Net of tax of $(328)
[5]	Net of tax of $94
[6]	Net of tax of $(308)
[7]	Net of tax of $123
[8]	Net of tax of $(960)

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]	'	'	'	'
Net change with respect to derivative instruments and hedging activities, tax	$275	($1,308)	$865	($328)
Net actuarial loss on pension and postretirement obligations, tax	$94	($308)	$123	($960)

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$242,199	$311,800
Accounts receivable, less allowance for doubtful accounts of $854 in 2014 and $2,391 in 2013	367,299	271,847
Inventories	291,138	251,716
Current deferred income taxes	9,089	8,106
Other current assets	36,321	31,248
Total current assets	946,046	874,717
Property, plant, and equipment, net	245,441	244,457
Goodwill	108,418	94,357
Other assets	49,953	34,236
Total assets	1,349,858	1,247,767
Current liabilities:	'	'
Current portion of debt	60,328	29,083
Accounts payable	101,671	80,897
Accrued wages and other employee costs	34,158	37,109
Other current liabilities	71,996	72,167
Total current liabilities	268,153	219,256
Long-term debt, less current portion	205,750	206,250
Pension liabilities	10,166	10,645
Postretirement benefits other than pensions	16,652	16,781
Environmental reserves	21,661	22,144
Deferred income taxes	33,226	35,975
Other noncurrent liabilities	1,306	849
Total liabilities	556,914	511,900
Mueller Industries, Inc. stockholders' equity:	'	'
Preferred stock - $1.00 par value; shares authorized 5,000,000; none outstanding	0	0
Common stock - $.01 par value; shares authorized 100,000,000; issued 80,183,004; outstanding 56,712,056 in 2014 and 56,604,674 in 2013	802	401
Additional paid-in capital	269,427	267,142
Retained earnings	959,522	908,274
Accumulated other comprehensive loss	-8,729	-10,819
Treasury common stock, at cost	-460,199	-461,593
Total Mueller Industries, Inc. stockholders' equity	760,823	703,405
Noncontrolling interest	32,121	32,462
Total equity	792,944	735,867
Commitments and contingencies	'	'
Total liabilities and equity	$1,349,858	$1,247,767

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, except Share data, unless otherwise specified
Current assets:	'	'
Allowance for doubtful accounts	$854	$2,391
Mueller Industries, Inc. stockholders' equity:	'	'
Preferred stock, par value (in dollars per share)	$1	$1
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	80,183,004	80,183,004
Common stock, shares outstanding (in shares)	56,712,056	56,604,674	[1]
[1]	Adjusted retroactively to reflect the two-for-one stock split that occurred on March 14, 2014.

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013
Cash flows from operating activities	'	'
Consolidated net income	$60,163	$118,276
Reconciliation of consolidated net income to net cash (used in) provided by operating activities:	'	'
Depreciation and amortization	16,840	16,649
Stock-based compensation expense	3,526	3,326
Insurance settlement	0	-106,332
Insurance proceeds - noncapital related	0	32,395
Gain on disposal of properties	-1,225	-2,984
Deferred income taxes	-6,523	12,468
Income tax benefit from exercise of stock options	-316	-95
Changes in assets and liabilities, net of business acquired:	'	'
Receivables	-100,413	-35,095
Inventories	-20,619	4,705
Other assets	-8,886	-306
Current liabilities	7,373	6,150
Other liabilities	-893	-423
Other, net	92	420
Net cash (used in) provided by operating activities	-50,881	49,154
Cash flows from investing activities	'	'
Capital expenditures	-18,833	-21,687
Acquisition of business	-30,137	0
Insurance proceeds for property and equipment	0	29,910
Net withdrawals from (deposits into) restricted cash balances	1,815	-4,721
Proceeds from the sales of properties	4,874	3,016
Net cash (used in) provided by investing activities	-42,281	6,518
Cash flows from financing activities	'	'
Repayments of long-term debt	-500	-500
Dividends paid to stockholders of Mueller Industries, Inc.	-8,394	-6,960
Debt issuance cost	0	-50
Issuance of debt by joint venture, net	8,903	15,544
Issuance of debt	22,635	0
Net cash received to settle stock-based awards	296	260
Repurchase of common stock	-58	0
Income tax benefit from exercise of stock options	316	95
Net cash provided by financing activities	23,198	8,389
Effect of exchange rate changes on cash	363	-1,328
(Decrease) increase in cash and cash equivalents	-69,601	62,733
Cash and cash equivalents at the beginning of the period	311,800	198,934
Cash and cash equivalents at the end of the period	$242,199	$261,667

Earnings_per_Common_Share

Earnings per Common Share	6 Months Ended
	Jun. 28, 2014
Earnings per Common Share [Abstract]	'
Earnings per Common Share	'
	Note 1 – Earnings per Common Share
	Basic per share amounts have been computed based on the average number of common shares outstanding.  Diluted per share amounts reflect the increase in average common shares outstanding that would result from the assumed exercise of outstanding stock options and vesting of restricted stock awards, computed using the treasury stock method.  Approximately 20 thousand stock options were excluded from the computation of diluted earnings per share for the quarter ended June 28, 2014 because they were antidilutive.
	On February 21, 2014, the Company’s Board of Directors announced a two-for-one stock split of its common stock effected in the form of a stock dividend of one share for each outstanding share.  The record date for the stock split was March 14, 2014, and the additional shares were distributed on March 28, 2014.  Accordingly, all references to share and per share amounts presented in the Condensed Consolidated Financial Statements and this Quarterly Report on Form 10-Q have been adjusted retroactively to reflect the stock split.

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 28, 2014
Commitments and Contingencies [Abstract]	'
Commitments and Contingencies	'
	Note 2 – Commitments and Contingencies
	The Company is involved in certain litigation as a result of claims that arose in the ordinary course of business, which management believes will not have a material adverse effect on the Company’s financial position, results of operations, or cash flows.  The Company may also realize the benefit of certain legal claims and litigation in the future; these gain contingencies are not recognized in the Condensed Consolidated Financial Statements.
	United States Department of Commerce Antidumping Review
	On December 24, 2008, the United States Department of Commerce (DOC) initiated an antidumping administrative review of the antidumping duty order covering circular welded non-alloy steel pipe and tube from Mexico to determine the final antidumping duties owed on U.S. imports during the period November 1, 2007 through October 31, 2008, by certain subsidiaries of the Company.  On April 19, 2010, the DOC published the final results of this review and assigned Mueller Comercial de Mexico, S. de R.L. de C.V. (Mueller Comercial) an antidumping duty rate of 48.3 percent.  The Company appealed the final determination to the U.S. Court of International Trade (CIT).  The Company and the United States have reached an agreement to settle the appeal.  As a result, the DOC published on March 22, 2013 the amended final results of the review and assigned Mueller Comercial an antidumping duty rate of 40.5 percent.  U.S. Customs and Border Protection has assessed antidumping duties on subject imports during the period of review.  As of June 28, 2014, Mueller Comercial has complied with all requests for payment of duties related to this review period.
	On December 23, 2009, the DOC initiated an antidumping administrative review of the antidumping duty order covering circular welded non-alloy steel pipe and tube from Mexico for the November 1, 2008  through October 31, 2009 period of review.  The DOC selected Mueller Comercial as a respondent in the review.  On June 21, 2011, the DOC published the final results of the review and assigned Mueller Comercial an antidumping duty rate of 19.8 percent.  On August 22, 2011, the Company appealed the final results to the CIT.  On December 21, 2012, the CIT issued a decision upholding the Department’s final results in part.  The CIT issued its final judgment on May 2, 2013.  On May 6, 2013, the Company appealed the CIT decision to the U.S. Court of Appeals for the Federal Circuit (Federal Circuit).  On May 29, 2014, the Federal Circuit issued its decision vacating the CIT’s decision and remanding the case back to DOC to reconsider the Company’s rate.  The Company anticipates that certain of its subsidiaries will incur antidumping duties on subject imports made during the period of review and, as such, established a reserve of approximately $1.1 million for this matter.
	Subsequent to October 31, 2009, Mueller Comercial did not ship subject merchandise to the United States.  Therefore, there is zero antidumping duty liability for periods of review after October 31, 2009.
	U.K. Actions Relating to the European Commission’s 2004 Copper Tube Decision and 2006 Copper Fittings Decision
	In the Competition Appeal Tribunal (the CAT) in the United Kingdom, IMI plc and IMI Kynoch Limited (IMI) and Boliden AB (Boliden) were served with claims by 21 claimants, all companies within the Travis Perkins Group (TP and the TP Claimants) regarding copper tube. The TP Claimants sought follow-on damages arising out of conduct described in the European Commission’s September 3, 2004, decision regarding copper tube.  The claims purported to arise from the findings of the European Commission as set forth in that decision (Copper Tube Decision).  IMI and Boliden commenced legal proceedings against Mueller Industries, Inc., WTC Holding Company, Inc., DENO Holding Company, Inc., Mueller Europe, Limited, and DENO Acquisition EURL (the five Mueller entities), and in those proceedings claimed  a contribution for any follow-on damages.
	In the High Court in the United Kingdom, IMI has also been served with claims by 21 TP Claimants regarding copper fittings.  The TP Claimants are seeking follow-on damages arising out of conduct described in the European Commission’s September 20, 2006, decision regarding copper fittings.  The claims similarly purport to arise from the findings of the European Commission as set forth in that decision.  IMI has commenced legal proceedings against Mueller Industries, Inc., Mueller Europe Limited, and WTC Holding Company, Inc. (the three Mueller entities), and in those proceedings are claiming a contribution for any follow-on damages.
	As to the claims arising from the Copper Tube Decision brought in the CAT, following the CAT’s grant of approval, the case was transferred to the High Court. Mueller’s defense in response to the contribution claims brought by IMI and Boliden was served on March 15, 2013.  During the second quarter of 2014, a settlement was reached in respect of the claims against Mueller and the High Court has been asked to dismiss the claims against Mueller. The total payment made by Mueller pursuant to the settlement did not have a material impact on the Company’s financial position, results of operations, or cash flows.
	As to the claims arising from the Copper Fittings Decision, Mueller's defense in response to the contribution claims brought by IMI was served on May 30, 2014.  A case management conference is anticipated to take place in late July 2014.  At this time, the Company does not believe that the outstanding claims against Mueller relating to copper fittings will have a material impact on its financial position, results of operations, or cash flows.
	Other
	Guarantees, in the form of letters of credit, are issued by the Company generally to assure the payment of insurance deductibles and certain retiree health benefits.  The terms of the Company’s guarantees are generally one year but are renewable annually as required.  These letters are primarily backed by the Company’s revolving credit facility.  The maximum payments that the Company could be required to make under its guarantees at June 28, 2014 were $10.3 million.

Insurance_Claims

Insurance Claims	6 Months Ended
	Jun. 28, 2014
Insurance Claims [Abstract]	'
Insurance Claims	'
	Note 3 – Insurance Claims
	In September 2011, a portion of the Company’s Wynne, Arkansas manufacturing operation was damaged by fire.  Certain inventories, production equipment, and building structures were extensively damaged.  During the second quarter of 2013, the Company settled the claim with its insurer for total proceeds of $127.3 million, net of the deductible of $0.5 million.  As a result of the settlement with its insurer, all proceeds received and all costs previously deferred (which were recorded as other current liabilities in prior periods) were recognized, resulting in a pre-tax gain of $106.3 million in the second quarter of 2013, or $1.17 per diluted share after tax.

Inventories

Inventories	6 Months Ended
	Jun. 28, 2014
Inventories [Abstract]	'
Inventories	'
	Note 4 – Inventories
	(In thousands)	June 28, 2014			December 28, 2013
	Raw materials and supplies	$	53,948		$	54,613
	Work-in-process		60,893			43,796
	Finished goods		181,407			159,422
	Valuation reserves		(5,110	)		(6,115	)
	Inventories	$	291,138		$	251,716

Industry_Segments

Industry Segments	6 Months Ended
	Jun. 28, 2014
Industry Segments [Abstract]	'
Industry Segments	'
	Note 5 – Industry Segments
	The Company’s reportable segments are Plumbing & Refrigeration and Original Equipment Manufacturers (OEM).  For disclosure purposes, as permitted under Accounting Standards Codification (ASC) 280, Segment Reporting, certain operating segments are aggregated into reportable segments.  The Plumbing & Refrigeration segment is composed of Standard Products (SPD), European Operations, and Mexican Operations.  The OEM segment is composed of Industrial Products (IPD), Engineered Products (EPD), and Jiangsu Mueller–Xingrong Copper Industries Limited (Mueller-Xingrong).  These segments are classified primarily by the markets for their products.  Performance of segments is generally evaluated by their operating income.  Intersegment transactions are generally conducted on an arms-length basis.
	SPD manufactures copper tube and fittings, plastic fittings, plastic pipe, and line sets.  These products are manufactured in the U.S.  Outside the U.S., the Company’s European Operations manufacture copper tube, which is sold primarily in Europe.  SPD also imports and resells brass and plastic plumbing valves, malleable iron fittings, faucets, and plumbing specialty products.  Mexican Operations consist of pipe nipple manufacturing and import distribution businesses including product lines of malleable iron fittings and other plumbing specialties.  The European Operations also includes the import distribution of fittings, valves, and plumbing specialties primarily in the U.K. and Ireland.  The Plumbing & Refrigeration segment’s products are sold primarily to plumbing, refrigeration, and air-conditioning wholesalers, hardware wholesalers and co-ops, and building product retailers.  For the six months ended June 28, 2014, cost of goods sold included a decrease in accruals related to import duties of $3.1 million.
	IPD manufactures brass rod, impact extrusions, and forgings which are used in a wide variety of end products including plumbing brass, automotive components, valves, and fittings.  EPD manufactures and fabricates valves and assemblies primarily for the refrigeration, air-conditioning, and gas appliance markets and specialty copper, copper-alloy, and aluminum tubing.  Mueller-Xingrong manufactures engineered copper tube primarily for air-conditioning applications.  These products are sold primarily to original equipment manufacturers.
		For the Quarter Ended June 28, 2014
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	397,190		$	255,409	$	(2,908	)	$	649,691
	Cost of goods sold		336,256			224,392		(2,873	)		557,775
	Depreciation and amortization		5,096			2,892		604			8,592
	Selling, general, and administrative expense		23,508			4,909		6,703			35,120
	Operating income		32,330			23,216		(7,342	)		48,204
	Interest expense										(1,457	)
	Other income, net										127
	Income before income taxes									$	46,874
		For the Quarter Ended June 29, 2013
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	328,673		$	257,044	$	(3,435	)	$	582,282
	Cost of goods sold		277,933			226,596		(3,404	)		501,125
	Depreciation and amortization		4,443			3,342		543			8,328
	Selling, general, and administrative expense		20,382			6,167		8,265			34,814
	Insurance settlement		(103,895	)		—		(2,437	)		(106,332	)
	Operating income		129,810			20,939		(6,402	)		144,347
	Interest expense										(1,101	)
	Other income, net										319
	Income before income taxes									$	143,565
		For the Six Months Ended June 28, 2014
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	735,217		$	495,439	$	(6,591	)	$	1,224,065
	Cost of goods sold		625,281			434,795		(6,524	)		1,053,552
	Depreciation and amortization		9,516			5,975		1,208			16,699
	Selling, general, and administrative expense		44,205			10,167		12,931			67,303
	Operating income		56,215			44,502		(14,206	)		86,511
	Interest expense										(2,483	)
	Other income, net										215
	Income before income taxes									$	84,243
		For the Six Months Ended June 29, 2013
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	640,487		$	510,831	$	(9,346	)	$	1,141,972
	Cost of goods sold		542,747			450,476		(9,248	)		983,975
	Depreciation and amortization		8,689			6,704		1,089			16,482
	Selling, general, and administrative expense		40,509			12,389		13,259			66,157
	Insurance settlement		(103,895	)		—		(2,437	)		(106,332	)
	Operating income		152,437			41,262		(12,009	)		181,690
	Interest expense										(1,697	)
	Other income, net										3,482
	Income before income taxes									$	183,475

Debt

Debt	6 Months Ended
	Jun. 28, 2014
Debt [Abstract]	'
Debt	'
	Note 6 – Debt
	Effective May 29, 2014, the Company amended its credit agreement (the Credit Agreement) entered into on March 7, 2011 to reduce the unsecured $350.0 million revolving credit facility to $200.0 million.  The Credit Agreement also provides for a $200.0 million Term Loan Facility, which, together with the Revolving Loan Facility, both mature on December 11, 2017.
	On March 21, 2014, Mueller Europe, Limited (MEL) entered into a credit agreement (the Invoice Facility) establishing a total borrowing capacity of £40.0 million, or approximately $65.9 million.  The Invoice Facility has an initial term of two years.  Borrowings outstanding under the Invoice Facility are secured by MEL’s trade account receivables denominated in British pounds.  Borrowings were approximately $23.1 million at June 28, 2014, and bear interest at the latest base-lending rate published by HSBC plus 155 basis points, which was approximately 2.05 percent at the end of the second quarter of 2014.

Employee_Benefits

Employee Benefits	6 Months Ended
	Jun. 28, 2014
Employee Benefits [Abstract]	'
Employee Benefits	'
	Note 7 – Employee Benefits
	The Company sponsors several qualified and nonqualified pension plans and other postretirement benefit plans for certain of its employees.  The components of net periodic benefit cost are as follows:
		For the Quarter Ended						For the Six Months Ended
	(In thousands)	June 28, 2014			June 29, 2013			June 28, 2014			June 29, 2013
	Pension benefits:
	Service cost	$	175		$	326		$	397		$	701
	Interest cost		2,059			2,017			4,127			4,047
	Expected return on plan assets		(3,201	)		(2,892	)		(6,402	)		(5,690	)
	Amortization of net loss		189			978			377			1,970
	Net periodic benefit (income) cost	$	(778	)	$	429		$	(1,501	)	$	1,028
	Other benefits:
	Service cost	$	87		$	70		$	176		$	138
	Interest cost		186			32			363			312
	Amortization of prior service (credit) cost		(1	)		1			(1	)		3
	Amortization of net gain		(45	)		(58	)		(109	)		(84	)
	Net periodic benefit cost	$	227		$	45		$	429		$	369

Income_Taxes

Income Taxes	6 Months Ended
	Jun. 28, 2014
Income Taxes [Abstract]	'
Income Taxes	'
	Note 8 – Income Taxes
	The Company’s effective tax rate for the second quarter of 2014 was 25 percent compared with 36 percent for the same period last year.  The difference between the effective tax rate and the amount that would be computed using the U.S. federal statutory tax rate for the second quarter of 2014 were reductions related to the U.S. production activities deduction of $1.4 million and decreases in valuation allowances of $4.8 million. These items were partially offset by the provision for state income taxes, net of the federal benefit, of $1.2 million.
	The Company’s effective tax rate for the first half of 2014 was 29 percent compared with 36 percent for the same period last year.  The difference between the effective tax rate and the amount that would be computed using the U.S. federal statutory tax rate was attributable to reductions for: (i) the U.S. production activities deduction of $2.6 million; (ii) decreases in valuation allowances of $5.7 million; and (iii) the effect of foreign tax rates lower than statutory tax rates and other foreign adjustments of $0.3 million. These items were partially offset by the provision for state income taxes, net of the federal benefit, of $2.5 million.
	The Company released a valuation allowance of $4.8 million, or eight cents per diluted share, in the second quarter of 2014 related to certain state income tax credits.  As a result of legislative changes enacted in the second quarter, the Company now expects to be able to use such credits within the foreseeable future.
	Total unrecognized tax benefits, including derecognized deferred tax assets, as of June 28, 2014 were $2.8 million.  It is reasonably possible that this amount may decrease by the full amount over the next twelve months, none of which will impact the effective tax rate.
	The Company files a consolidated U.S. federal income tax return and numerous consolidated and separate-company income tax returns in many state, local, and foreign jurisdictions.  The statute of limitations is open for the Company’s federal tax return and most state income tax returns for 2010 and all subsequent years and is open for certain state and foreign returns for earlier tax years due to ongoing audits and differing statute periods.  The Internal Revenue Service has audited the 2010 and 2012 federal income tax returns, the results of which were immaterial to the Company’s financial position, results of operations, or cash flows.  While the Company believes that it is adequately reserved for possible future audit adjustments, the final resolution of these examinations cannot be determined with certainty and could result in final settlements that differ from current estimates.

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 28, 2014
Derivative Instruments and Hedging Activities [Abstract]	'
Derivative Instruments and Hedging Activities	'
	Note 9 – Derivative Instruments and Hedging Activities
	Earnings and cash flows are subject to fluctuations due to changes in commodity prices, foreign currency exchange rates, and interest rates. The Company uses derivative instruments such as commodity futures contracts, foreign currency forward contracts, and interest rate swaps to manage these exposures.
	All derivatives are recognized on the Condensed Consolidated Balance Sheets at their fair value. On the date the derivative contract is entered into, it is designated as (i) a hedge of a forecasted transaction or the variability of cash flow to be paid (cash flow hedge), or (ii) a hedge of the fair value of a recognized asset or liability (fair value hedge). Changes in the fair value of a derivative that is qualified, designated and highly effective as a cash flow hedge are recorded in accumulated other comprehensive income (AOCI), to the extent effective, until they are reclassified to earnings in the same period or periods during which the hedged transaction affects earnings. Changes in the fair value of a derivative that is qualified, designated and highly effective as a fair value hedge, along with the gain or loss on the hedged recognized asset or liability that is attributable to the hedged risk, are recorded in current earnings. Changes in the fair value of undesignated derivative instruments and the ineffective portion of designated derivative instruments are reported in current earnings.
	The Company documents all relationships between hedging instruments and hedged items, as well as the risk-management objective and strategy for undertaking various hedge transactions. This process includes linking all derivatives that are designated as fair value hedges to specific assets and liabilities on the Condensed Consolidated Balance Sheets and linking cash flow hedges to specific forecasted transactions or variability of cash flow.
	The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the designated derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flow or fair values of hedged items. When a derivative is determined not to be highly effective as a hedge or the underlying hedged transaction is no longer probable, hedge accounting is discontinued prospectively, in accordance with the derecognition criteria for hedge accounting.
	Commodity Futures Contracts
	Copper and brass represent the largest component of the Company’s variable costs of production.  The cost of these materials is subject to global market fluctuations caused by factors beyond the Company’s control.  The Company occasionally enters into forward fixed-price arrangements with certain customers; the risk of these arrangements is generally managed with commodity futures contracts.   These futures contracts have been designated as cash flow hedges.
	At June 28, 2014, the Company held open futures contracts to purchase approximately $19.6 million of copper over the next 13 months related to fixed price sales orders.  The fair value of those futures contracts was a $438 thousand gain position, which was determined by obtaining quoted market prices (Level 1 hierarchy as defined by ASC 820, Fair Value Measurements and Disclosures (ASC 820)). In the next twelve months, the Company will reclassify into earnings realized gains or losses of cash flow hedges. At June 28, 2014, this amount was approximately $303 thousand of deferred net gains, net of tax.
	The Company may also enter into futures contracts to protect the value of inventory against market fluctuations.   These futures contracts have been designated as fair value hedges.
	At June 28, 2014, the Company held open futures contracts to sell approximately $18.7 million of copper over the next six months related to copper inventory. The fair value of those futures contracts was a $24 thousand loss position, which was determined by obtaining quoted market prices (Level 1 hierarchy as defined by ASC 820).  During the fourth quarter of 2013, the Company dedesignated previous hedges on its inventory because the hedging relationship was no longer deemed to be highly effective.  These contracts no longer qualified as hedging instruments as of December 28, 2013.
	Foreign Currency Forward Contracts
	During 2012 and 2013, the Company entered into certain contracts to purchase heavy machinery and equipment denominated in euros. In anticipation of entering into these contracts, the Company has entered into forward contracts to purchase euros to protect itself against adverse foreign exchange rate fluctuations.
	At June 28, 2014, the Company held open forward contracts to purchase approximately 4.6 million euros over the next nine months.  The fair value of these contracts, which was determined by obtaining quoted market prices (Level 1 hierarchy as defined by ASC 820), was a $319 thousand gain position recorded in other current assets at June 28, 2014, and an $836 thousand gain position recorded in other current assets at December 28, 2013. At June 28, 2014, there was $242 thousand of deferred net gains, net of tax, included in AOCI that is expected to be reclassified into property, plant, and equipment, net, when the hedged transactions occur.
	Interest Rate Swap
	On February 20, 2013, the Company entered into a two-year forward-starting interest rate swap agreement with an effective date of January 12, 2015, and an underlying notional amount of $200.0 million, pursuant to which the Company receives variable interest payments based on one-month LIBOR and pays fixed interest at a rate of 1.4 percent.  Based on the Company’s current variable premium pricing on its Term Loan Facility, the all-in fixed rate on the effective date is 2.7 percent.  The interest rate swap will mature on December 11, 2017, and is structured to offset the interest rate risk associated with the Company’s floating-rate, LIBOR-based Term Loan Facility Agreement.  The swap was designated and accounted for as a cash flow hedge from inception.
	The fair value of the interest rate swap is estimated based on the present value of the difference between expected cash flows calculated at the contracted interest rate and the expected cash flows at the current market interest rate using observable benchmarks for LIBOR forward rates at the end of the period (Level 2 hierarchy as defined by ASC 820).  Interest payable and receivable under the swap agreement will be accrued and recorded as an adjustment to interest expense.  The fair value of the interest rate swap was a $664 thousand loss position and was recorded in other liabilities at June 28, 2014.  At June 28, 2014, there was $425 thousand of deferred net losses, net of tax, included in AOCI that is expected to be reclassified into interest expense over the term of the hedged item.
	We present our derivative assets and liabilities in our Condensed Consolidated Balance Sheets on a net basis by counterparty. The following table summarizes the location and fair value of the derivative instruments and disaggregates our net derivative assets and liabilities into gross components on a contract-by-contract basis:
		Asset Derivatives									Liability Derivatives
				Fair Value									Fair Value
	(In thousands)	Balance Sheet Location		28-Jun-14				Dec. 28, 2013			Balance Sheet Location		28-Jun-14				Dec. 28, 2013
	Hedging instrument:
	Commodity contracts - gains	Other current assets		$	513			$	448		Other current liabilities		$	—			$	340
	Commodity contracts - losses	Other current assets			(52	)			(10	)	Other current liabilities			(47	)			(2,107	)
	Foreign currency contracts	Other current assets			319				836		Other current liabilities			—				—
	Interest rate swap	Other assets			—				1,324		Other liabilities			(664	)			—
	Total derivatives (1)			$	780			$	2,598				$	(711	)		$	(1,767	)
	(1) Does not include the impact of cash collateral received from or provided to counterparties.
	The following tables summarize the effects of derivative instruments on our Condensed Consolidated Statements of Income:
				Three Months Ended								Six Months Ended
	(In thousands)	Location		28-Jun-14				29-Jun-13				28-Jun-14				29-Jun-13
	Fair value hedges:
	(Loss) gain on commodity contracts (qualifying)	Cost of goods sold		$	(20	)		$	1,857			$	6,271			$	5,190
	Gain (loss) on hedged item - Inventory	Cost of goods sold			20				(1,928	)			(5,780	)			(4,813	)
				Three Months Ended								Six Months Ended
	(In thousands)	Location		28-Jun-14				29-Jun-13				28-Jun-14				29-Jun-13
	Undesignated derivatives:
	(Loss) gain on commodity contracts (nonqualifying)	Cost of goods sold			(72	)			—				1,466				—
	The following tables summarize amounts recognized in and reclassified from AOCI during the period:
			Three Months Ended June 28, 2014
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	578			Cost of goods sold		$	168
	Foreign currency contracts			(25	)		Property, plant, and			(63
							equipment, net				)
	Interest rate swap			(1,022	)		Interest expense			—
			Three Months Ended June 29, 2013
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	(2,876	)		Cost of goods sold		$	2,596
	Foreign currency contracts			(20	)		Property, plant, and			—
							equipment, net
	Interest rate swap			2,395			Interest expense			—
			Six Months Ended June 28, 2014
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	(432	)		Cost of goods sold		$	459
	Foreign currency contracts			(3	)		Property, plant, and			(237	)
							equipment, net
	Interest rate swap			(1,267	)		Interest expense			—
			Six Months Ended June 29, 2013
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	(3,530	)		Cost of goods sold		$	2,521
Foreign currency contracts			(20	)		Property, plant, and			—
						equipment, net
Interest rate swap			1,396			Interest expense			—
The Company enters into futures and forward contracts that closely match the terms of the underlying transactions.  As a result, the ineffective portion of the open hedge contracts through June 28, 2014 was not material to the Condensed Consolidated Statements of Income.
The Company primarily enters into International Swaps and Derivatives Association (ISDA) master netting agreements with major financial institutions that permit the net settlement of amounts owed under their respective derivative contracts. Under these master netting agreements, net settlement generally permits the Company or the counterparty to determine the net amount payable for contracts due on the same date and in the same currency for similar types of derivative transactions. The master netting agreements generally also provide for net settlement of all outstanding contracts with a counterparty in the case of an event of default or a termination event. The Company does not offset fair value amounts for derivative instruments and fair value amounts recognized for the right to reclaim cash collateral.  At June 28, 2014 and December 28, 2013, the Company had recorded restricted cash of $1.0 million and $2.1 million as collateral related to open derivative contracts under the master netting arrangements.
The effect of the net settlement provisions of the master netting agreements on our derivative balances upon an event of default or termination event is as follows:
		28-Jun-14
														Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
(In thousands)		Gross Amounts Recognized in Assets				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Assets Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Assets
Assets:
Commodity contracts		$	513			$	(52	)		$	461			$	—			$	972	$	1,433
Foreign currency contracts			319				—				319				—				—		319
Interest rate swap			—				—				—				—				—		—
Total		$	832			$	(52	)		$	780			$	—			$	972	$	1,752
		28-Jun-14
														Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
(In thousands)		Gross Amounts Recognized in Liabilities				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Liabilities Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Liabilities
Liabilities:
Commodity contracts		$	(47	)		$	—			$	(47	)		$	—			$	—	$	(47	)
Foreign currency contracts			—				—				—				—				—		—
Interest rate swap			(664	)			—				(664	)			—				—		(664	)
Total		$	(711	)		$	—			$	(711	)		$	—			$	—	$	(711	)
		28-Dec-13
														Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
(In thousands)		Gross Amounts Recognized in Assets				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Assets Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Assets
Assets:
Commodity contracts		$	448			$	(10	)		$	438			$	—			$	2,051	$	2,489
Foreign currency contracts			836				—				836				—				—		836
Interest rate swap			1,324				—				1,324				—				—		1,324
Total		$	2,608			$	(10	)		$	2,598			$	—			$	2,051	$	4,649
		December 28,2013
														Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
(In thousands)		Gross Amounts Recognized in Liabilities				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Liabilities Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Liabilities
Liabilities:
Commodity contracts		$	(2,107	)		$	340			$	(1,767	)		$	—			$	—	$	(1,767	)
Foreign currency contracts			—				—				—				—				—		—
Interest rate swap			—				—				—				—				—		—
Total		$	(2,107	)		$	340			$	(1,767	)		$	—			$	—	$	(1,767	)

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 28, 2014
Accumulated Other Comprehensive Income [Abstract]	'
Accumulated Other Comprehensive Income	'
	Note 10 – Accumulated Other Comprehensive Income
	Changes in AOCI by component, net of taxes and noncontrolling interest, were as follows:
		For the Six Months Ended June 28, 2014
	(In thousands)		Cumulative Translation Adjustment			Unrealized (Losses)/Gains on Derivatives				Minimum Pension/OPEB Liability Adjustment			Unrealized Gains on Equity Investments		Total
	Beginning balance		$	(462	)	$	1,546			$	(12,158	)	$	255	$	(10,819	)
	Other comprehensive income (loss) before reclassifications			3,711			(1,698	)			(388	)		9		1,636
	Amounts reclassified from AOCI			—			222				232			—		454
	Net current-period other comprehensive income			3,711			(1,476	)			(156	)		9		2,090
	Ending balance		$	3,249		$	70			$	(12,314	)	$	264	$	(8,729	)
		For the Six Months Ended June 29, 2013
	(In thousands)		Cumulative Translation Adjustment			Unrealized (Losses)/Gains on Derivatives				Minimum Pension/OPEB Liability Adjustment			Unrealized Gains on Equity Investments		Total
	Beginning balance		$	(3,033	)	$	(166	)		$	(39,527	)	$	103	$	(42,623	)
	Other comprehensive income (loss) before reclassifications			(6,470	)		2,995				893			83		(2,499	)
	Amounts reclassified from AOCI			—			(2,521	)			1,268			—		(1,253	)
	Net current-period other comprehensive income			(6,470	)		474				2,161			83		(3,752	)
	Ending balance		$	(9,503	)	$	308			$	(37,366	)	$	186	$	(46,375	)
	Reclassification adjustments out of AOCI were as follows:
			Amount reclassified from AOCI
			For the Quarter Ended
	(In thousands)		28-Jun-14			29-Jun-13			Affected line item
	Unrealized losses/(gains) on derivatives:
	Commodity contracts		$	208		$	3,967		Cost of goods sold
	Foreign currency contracts			(99	)		—		Property, plant, and equipment, net
				(4	)		(1,371	)	Income tax expense
				105			2,596		Net of tax
				—			—		Noncontrolling interest
			$	105		$	2,596		Net of tax and noncontrolling
									interest
	Amortization of employee benefit items:
	Amortization of net loss and prior service cost		$	143		$	921		Selling, general, and administrative
									expense
				(22	)		(302	)	Income tax expense
				121			619		Net of tax
				—			—		Noncontrolling interest
			$	121		$	619		Net of tax and noncontrolling
									interest
			Amount reclassified from AOCI
			For the Six Months Ended
	(In thousands)		28-Jun-14			29-Jun-13			Affected line item
	Unrealized losses/(gains) on derivatives:
	Commodity contracts		$	565		$	3,876		Cost of goods sold
	Foreign currency contracts			(375	)		—		Property, plant, and equipment, net
				32			(1,355	)	Income tax benefit
				222			2,521		Net of tax
				—			—		Noncontrolling interest
			$	222		$	2,521		Net of tax and noncontrolling
									interest
	Amortization of employee benefit items:
	Amortization of net loss and prior service cost		$	267		$	1,889		Selling, general, and administrative
									expense
				(35	)		(621	)	Income tax expense
				232			1,268		Net of tax
				—			—		Noncontrolling interest
			$	232		$	1,268		Net of tax and noncontrolling
									interest

Acquisitions

Acquisitions	6 Months Ended
	Jun. 28, 2014
Acquisitions [Abstract]	'
Acquisitions	'
	Note 11 – Acquisitions
	On October 18, 2013, the Company entered into a definitive agreement with KME Yorkshire Limited (Yorkshire) to acquire certain assets and assume certain liabilities of Yorkshire for purposes of acquiring its copper tube business.  Yorkshire produces European standard copper distribution tubes.  This transaction received regulatory approval in the United Kingdom on February 11, 2014 and closed on February 28, 2014.  The purchase price was approximately $30.1 million, paid in cash.  The acquisition of Yorkshire complements the Company’s existing copper tube businesses in the Plumbing and Refrigeration segment.  In 2012, Yorkshire had annual revenue of approximately $196.1 million.  The fair value of the assets acquired totaled $20.7 million, consisting primarily of inventories of $17.6 million, property, plant, and equipment of $2.1 million, and other current assets of $1.0 million.  The fair value of the liabilities assumed totaled $15.6 million, consisting primarily of accounts payable and accrued expenses of $15.2 million and other current liabilities of $0.4 million.  Of the remaining purchase price, $12.8 million was allocated to tax-deductible goodwill and $12.2 million was allocated to other intangible assets such as customer lists, non-compete agreements, and trade names and licenses.  The allocation of the purchase price to long-lived assets is provisional as of June 28, 2014 and subject to change upon completion of the final valuation of these assets.  The results of operations for Yorkshire have been included in the accompanying Condensed Consolidated Financial Statements from the acquisition date.
	On October 17, 2013, the Company entered into a Stock Purchase Agreement with Commercial Metals Company and Howell Metal Company (Howell) providing for the purchase of all of the outstanding capital stock of Howell for approximately $55.3 million in cash, net of working capital adjustments.  Howell manufactures copper tube and line sets for U.S. distribution.  The acquisition of Howell complements the Company’s copper tube and line sets businesses, both components of the Plumbing and Refrigeration segment.   For the twelve months ended August 31, 2013, Howell’s net sales for copper tube and line sets totaled $156.3 million.  During the first quarter of 2014, the purchase price allocation, including all fair value measurements, was finalized.  The fair value of the assets acquired totaled $63.0 million, consisting primarily of receivables of $14.6 million, inventories of $27.6 million, property, plant, and equipment of $20.3 million, and other current assets of $0.5 million.  The fair value of the liabilities assumed totaled $11.4 million, consisting primarily of accounts payable and accrued expenses of $9.9 million and other current liabilities of $1.5 million.  Of the remaining purchase price, $2.3 million was allocated to other intangible assets and $1.4 million to tax-deductible goodwill.  The results of operations for Howell have been included in the accompanying Condensed Consolidated Financial Statements from the acquisition date of October 17, 2013.

Recently_Issued_Accounting_Sta

Recently Issued Accounting Standards	6 Months Ended
	Jun. 28, 2014
Recently Issued Accounting Standards [Abstract]	'
Recently Issued Accounting Standards	'
	Note 12 – Recently Issued Accounting Standards
	In December 2011, the FASB issued ASU No. 2011-11, Balance Sheet (Topic 210) (ASU 2011-11). The amendments in this ASU require improved disclosure information about financial instruments and derivative instruments that are either offset or subject to an enforceable master netting arrangement or similar agreement.  Subsequently in January 2013, the FASB issued ASU 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities (ASU 2013-01), which clarifies the types of instruments and transactions that are subject to the offsetting disclosure requirements established by ASU 2011-11. These ASUs should be applied retrospectively for all comparative periods presented for annual periods beginning on or after January 1, 2013 and interim periods within those annual periods. The requirements of these ASUs were adopted during the first quarter of 2014 and did not have a significant impact on our disclosures.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09).  The ASU will supersede virtually all existing revenue recognition guidance under U.S. GAAP and will be effective for annual reporting periods beginning after December 15, 2016.  The fundamental principles of the new guidance are that companies should recognize revenue in a manner that reflects the timing of the transfer of services to customers and the amount of revenue recognized reflects the consideration that a company expects to receive for the goods and services provided.  The new guidance establishes a five-step approach for the recognition of revenue.  Based on our preliminary assessment, we do not anticipate that the new guidance will fundamentally change our revenue recognition policies, practices, or systems.

Inventories_Tables

Inventories (Tables)	6 Months Ended
	Jun. 28, 2014
Inventories [Abstract]	'
Inventories	'
	Inventories
	(In thousands)	June 28, 2014			December 28, 2013
	Raw materials and supplies	$	53,948		$	54,613
	Work-in-process		60,893			43,796
	Finished goods		181,407			159,422
	Valuation reserves		(5,110	)		(6,115	)
	Inventories	$	291,138		$	251,716

Industry_Segments_Tables

Industry Segments (Tables)	6 Months Ended
	Jun. 28, 2014
Industry Segments [Abstract]	'
Summary of segment information	'
		For the Quarter Ended June 28, 2014
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	397,190		$	255,409	$	(2,908	)	$	649,691
	Cost of goods sold		336,256			224,392		(2,873	)		557,775
	Depreciation and amortization		5,096			2,892		604			8,592
	Selling, general, and administrative expense		23,508			4,909		6,703			35,120
	Operating income		32,330			23,216		(7,342	)		48,204
	Interest expense										(1,457	)
	Other income, net										127
	Income before income taxes									$	46,874
		For the Quarter Ended June 29, 2013
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	328,673		$	257,044	$	(3,435	)	$	582,282
	Cost of goods sold		277,933			226,596		(3,404	)		501,125
	Depreciation and amortization		4,443			3,342		543			8,328
	Selling, general, and administrative expense		20,382			6,167		8,265			34,814
	Insurance settlement		(103,895	)		—		(2,437	)		(106,332	)
	Operating income		129,810			20,939		(6,402	)		144,347
	Interest expense										(1,101	)
	Other income, net										319
	Income before income taxes									$	143,565
		For the Six Months Ended June 28, 2014
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	735,217		$	495,439	$	(6,591	)	$	1,224,065
	Cost of goods sold		625,281			434,795		(6,524	)		1,053,552
	Depreciation and amortization		9,516			5,975		1,208			16,699
	Selling, general, and administrative expense		44,205			10,167		12,931			67,303
	Operating income		56,215			44,502		(14,206	)		86,511
	Interest expense										(2,483	)
	Other income, net										215
	Income before income taxes									$	84,243
		For the Six Months Ended June 29, 2013
	(In thousands)	Plumbing & Refrigeration Segment			OEM		Corporate and Eliminations			Total
					Segment
	Net sales	$	640,487		$	510,831	$	(9,346	)	$	1,141,972
	Cost of goods sold		542,747			450,476		(9,248	)		983,975
	Depreciation and amortization		8,689			6,704		1,089			16,482
	Selling, general, and administrative expense		40,509			12,389		13,259			66,157
	Insurance settlement		(103,895	)		—		(2,437	)		(106,332	)
	Operating income		152,437			41,262		(12,009	)		181,690
	Interest expense										(1,697	)
	Other income, net										3,482
	Income before income taxes									$	183,475

Employee_Benefits_Tables

Employee Benefits (Tables)	6 Months Ended
	Jun. 28, 2014
Employee Benefits [Abstract]	'
Components of net periodic benefit costs	'
	The Company sponsors several qualified and nonqualified pension plans and other postretirement benefit plans for certain of its employees.  The components of net periodic benefit cost are as follows:
		For the Quarter Ended						For the Six Months Ended
	(In thousands)	June 28, 2014			June 29, 2013			June 28, 2014			June 29, 2013
	Pension benefits:
	Service cost	$	175		$	326		$	397		$	701
	Interest cost		2,059			2,017			4,127			4,047
	Expected return on plan assets		(3,201	)		(2,892	)		(6,402	)		(5,690	)
	Amortization of net loss		189			978			377			1,970
	Net periodic benefit (income) cost	$	(778	)	$	429		$	(1,501	)	$	1,028
	Other benefits:
	Service cost	$	87		$	70		$	176		$	138
	Interest cost		186			32			363			312
	Amortization of prior service (credit) cost		(1	)		1			(1	)		3
	Amortization of net gain		(45	)		(58	)		(109	)		(84	)
	Net periodic benefit cost	$	227		$	45		$	429		$	369

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 28, 2014
Derivative Instruments and Hedging Activities [Abstract]	'
Derivative instruments designated as cash flow hedges reflected in the financial statements	'
	We present our derivative assets and liabilities in our Condensed Consolidated Balance Sheets on a net basis by counterparty. The following table summarizes the location and fair value of the derivative instruments and disaggregates our net derivative assets and liabilities into gross components on a contract-by-contract basis:
		Asset Derivatives									Liability Derivatives
				Fair Value									Fair Value
	(In thousands)	Balance Sheet Location		28-Jun-14				Dec. 28, 2013			Balance Sheet Location		28-Jun-14				Dec. 28, 2013
	Hedging instrument:
	Commodity contracts - gains	Other current assets		$	513			$	448		Other current liabilities		$	—			$	340
	Commodity contracts - losses	Other current assets			(52	)			(10	)	Other current liabilities			(47	)			(2,107	)
	Foreign currency contracts	Other current assets			319				836		Other current liabilities			—				—
	Interest rate swap	Other assets			—				1,324		Other liabilities			(664	)			—
	Total derivatives (1)			$	780			$	2,598				$	(711	)		$	(1,767	)
	(1) Does not include the impact of cash collateral received from or provided to counterparties.
Schedule of fair value hedges	'
	The following tables summarize the effects of derivative instruments on our Condensed Consolidated Statements of Income:
				Three Months Ended								Six Months Ended
	(In thousands)	Location		28-Jun-14				29-Jun-13				28-Jun-14				29-Jun-13
	Fair value hedges:
	(Loss) gain on commodity contracts (qualifying)	Cost of goods sold		$	(20	)		$	1,857			$	6,271			$	5,190
	Gain (loss) on hedged item - Inventory	Cost of goods sold			20				(1,928	)			(5,780	)			(4,813	)
				Three Months Ended								Six Months Ended
	(In thousands)	Location		28-Jun-14				29-Jun-13				28-Jun-14				29-Jun-13
	Undesignated derivatives:
	(Loss) gain on commodity contracts (nonqualifying)	Cost of goods sold			(72	)			—				1,466				—
Summary of activities related to derivative instruments classified as cash flow hedges	'
	The following tables summarize amounts recognized in and reclassified from AOCI during the period:
			Three Months Ended June 28, 2014
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	578			Cost of goods sold		$	168
	Foreign currency contracts			(25	)		Property, plant, and			(63
							equipment, net				)
	Interest rate swap			(1,022	)		Interest expense			—
			Three Months Ended June 29, 2013
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	(2,876	)		Cost of goods sold		$	2,596
	Foreign currency contracts			(20	)		Property, plant, and			—
							equipment, net
	Interest rate swap			2,395			Interest expense			—
			Six Months Ended June 28, 2014
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	(432	)		Cost of goods sold		$	459
	Foreign currency contracts			(3	)		Property, plant, and			(237	)
							equipment, net
	Interest rate swap			(1,267	)		Interest expense			—
			Six Months Ended June 29, 2013
	(In thousands)		Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax				Classification Gains (Losses)		Loss (Gain) Reclassified from AOCI (Effective Portion), Net of Tax
	Cash flow hedges:
	Commodity contracts		$	(3,530	)		Cost of goods sold		$	2,521
	Foreign currency contracts			(20	)		Property, plant, and			—
							equipment, net
	Interest rate swap			1,396			Interest expense			—
Offsetting Assets	'
			28-Jun-14
															Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
	(In thousands)		Gross Amounts Recognized in Assets				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Assets Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Assets
	Assets:
	Commodity contracts		$	513			$	(52	)		$	461			$	—			$	972	$	1,433
	Foreign currency contracts			319				—				319				—				—		319
	Interest rate swap			—				—				—				—				—		—
	Total		$	832			$	(52	)		$	780			$	—			$	972	$	1,752
			28-Dec-13
															Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
	(In thousands)		Gross Amounts Recognized in Assets				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Assets Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Assets
	Assets:
	Commodity contracts		$	448			$	(10	)		$	438			$	—			$	2,051	$	2,489
	Foreign currency contracts			836				—				836				—				—		836
	Interest rate swap			1,324				—				1,324				—				—		1,324
	Total		$	2,608			$	(10	)		$	2,598			$	—			$	2,051	$	4,649
Offsetting Liabilities	'
			28-Jun-14
															Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
	(In thousands)		Gross Amounts Recognized in Liabilities				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Liabilities Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Liabilities
	Liabilities:
	Commodity contracts		$	(47	)		$	—			$	(47	)		$	—			$	—	$	(47	)
	Foreign currency contracts			—				—				—				—				—		—
	Interest rate swap			(664	)			—				(664	)			—				—		(664	)
	Total		$	(711	)		$	—			$	(711	)		$	—			$	—	$	(711	)
			December 28,2013
															Gross Amounts Not Offset in the Condensed Consolidating Balance Sheet
	(In thousands)		Gross Amounts Recognized in Liabilities				Gross Amounts Offset in the Condensed Consolidating Balance Sheet				Net Amounts of Liabilities Presented in the Condensed Consolidating Balance Sheet				Financial Instruments				Cash Collateral Provided		Net Amounts of Liabilities
	Liabilities:
	Commodity contracts		$	(2,107	)		$	340			$	(1,767	)		$	—			$	—	$	(1,767	)
	Foreign currency contracts			—				—				—				—				—		—
	Interest rate swap			—				—				—				—				—		—
	Total		$	(2,107	)		$	340			$	(1,767	)		$	—			$	—	$	(1,767	)

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 28, 2014
Accumulated Other Comprehensive Income [Abstract]	'
Changes in accumulated OCI by component, net of taxes and noncontrolling interest	'
	Changes in AOCI by component, net of taxes and noncontrolling interest, were as follows:
		For the Six Months Ended June 28, 2014
	(In thousands)		Cumulative Translation Adjustment			Unrealized (Losses)/Gains on Derivatives				Minimum Pension/OPEB Liability Adjustment			Unrealized Gains on Equity Investments		Total
	Beginning balance		$	(462	)	$	1,546			$	(12,158	)	$	255	$	(10,819	)
	Other comprehensive income (loss) before reclassifications			3,711			(1,698	)			(388	)		9		1,636
	Amounts reclassified from AOCI			—			222				232			—		454
	Net current-period other comprehensive income			3,711			(1,476	)			(156	)		9		2,090
	Ending balance		$	3,249		$	70			$	(12,314	)	$	264	$	(8,729	)
		For the Six Months Ended June 29, 2013
	(In thousands)		Cumulative Translation Adjustment			Unrealized (Losses)/Gains on Derivatives				Minimum Pension/OPEB Liability Adjustment			Unrealized Gains on Equity Investments		Total
	Beginning balance		$	(3,033	)	$	(166	)		$	(39,527	)	$	103	$	(42,623	)
	Other comprehensive income (loss) before reclassifications			(6,470	)		2,995				893			83		(2,499	)
	Amounts reclassified from AOCI			—			(2,521	)			1,268			—		(1,253	)
	Net current-period other comprehensive income			(6,470	)		474				2,161			83		(3,752	)
	Ending balance		$	(9,503	)	$	308			$	(37,366	)	$	186	$	(46,375	)
Reclassification adjustments out of accumulated OCI	'
	Reclassification adjustments out of AOCI were as follows:
			Amount reclassified from AOCI
			For the Quarter Ended
	(In thousands)		28-Jun-14			29-Jun-13			Affected line item
	Unrealized losses/(gains) on derivatives:
	Commodity contracts		$	208		$	3,967		Cost of goods sold
	Foreign currency contracts			(99	)		—		Property, plant, and equipment, net
				(4	)		(1,371	)	Income tax expense
				105			2,596		Net of tax
				—			—		Noncontrolling interest
			$	105		$	2,596		Net of tax and noncontrolling
									interest
	Amortization of employee benefit items:
	Amortization of net loss and prior service cost		$	143		$	921		Selling, general, and administrative
									expense
				(22	)		(302	)	Income tax expense
				121			619		Net of tax
				—			—		Noncontrolling interest
			$	121		$	619		Net of tax and noncontrolling
									interest
			Amount reclassified from AOCI
			For the Six Months Ended
	(In thousands)		28-Jun-14			29-Jun-13			Affected line item
	Unrealized losses/(gains) on derivatives:
	Commodity contracts		$	565		$	3,876		Cost of goods sold
	Foreign currency contracts			(375	)		—		Property, plant, and equipment, net
				32			(1,355	)	Income tax benefit
				222			2,521		Net of tax
				—			—		Noncontrolling interest
			$	222		$	2,521		Net of tax and noncontrolling
									interest
	Amortization of employee benefit items:
	Amortization of net loss and prior service cost		$	267		$	1,889		Selling, general, and administrative
									expense
				(35	)		(621	)	Income tax expense
				232			1,268		Net of tax
				—			—		Noncontrolling interest
			$	232		$	1,268		Net of tax and noncontrolling
									interest

Earnings_per_Common_Share_Deta

Earnings per Common Share (Details)	6 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 28, 2014
		Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share (in shares)	'	20
Stock split, Conversion ratio	'two-for-one	'

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 28, 2014	Jun. 28, 2014	Mar. 22, 2013	Jun. 21, 2011	Apr. 19, 2010
	Entity	United States Department of Commerce Antidumping Review [Member]	United States Department of Commerce Antidumping Review [Member]	United States Department of Commerce Antidumping Review [Member]	United States Department of Commerce Antidumping Review [Member]
	Claimant
Commitments and Contingencies [Abstract]	'	'	'	'	'
Number of entities that received letters from counsel regarding copper tube	5	'	'	'	'
Number of claimants for copper tube	21	'	'	'	'
Number of entities that received letters from counsel regarding copper fittings	3	'	'	'	'
Number of claimants for copper fittings	21	'	'	'	'
Loss Contingencies [Line Items]	'	'	'	'	'
Assignment of antidumping duty rate on U.S. imports by Company subsidiaries (in hundredths)	'	'	40.50%	19.80%	48.30%
Reserve established	'	$1.10	'	'	'
Other [Abstract]	'	'	'	'	'
Term of guarantees	'1 year	'	'	'	'
Payments required to be made under guarantees, maximum	$10.30	'	'	'	'

Insurance_Claims_Details

Insurance Claims (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Business Interruption Loss [Line Items]	'	'	'	'
Pre-tax gain on insurance settlement	$0	$106,332,000	$0	$106,332,000
Wynne Arkansas Manufacturing Operation [Member]	'	'	'	'
Business Interruption Loss [Line Items]	'	'	'	'
Proceeds from settlement of insurance claim	'	127,300,000	'	'
Deductible for insurance claim	'	500,000	'	'
Pre-tax gain on insurance settlement	'	$106,300,000	'	'
Gain per diluted share, after tax (in dollars per share)	'	$1.17	'	'

Inventories_Details

Inventories (Details) (USD $)	Jun. 28, 2014	Dec. 28, 2013
In Thousands, unless otherwise specified
Inventories [Abstract]	'	'
Raw materials and supplies	$53,948	$54,613
Work-in-process	60,893	43,796
Finished goods	181,407	159,422
Valuation reserves	-5,110	-6,115
Inventories	$291,138	$251,716

Industry_Segments_Details

Industry Segments (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Industry Segments [Abstract]	'	'	'	'
Decrease in accruals related to import duties included in cost of goods sold	$3,100,000	'	'	'
Summary of segment information [Abstract]	'	'	'	'
Net sales	649,691,000	582,282,000	1,224,065,000	1,141,972,000
Cost of goods sold	557,775,000	501,125,000	1,053,552,000	983,975,000
Depreciation and amortization	8,592,000	8,328,000	16,699,000	16,482,000
Selling, general, and administrative expense	35,120,000	34,814,000	67,303,000	66,157,000
Insurance settlement	0	-106,332,000	0	-106,332,000
Operating income	48,204,000	144,347,000	86,511,000	181,690,000
Interest expense	-1,457,000	-1,101,000	-2,483,000	-1,697,000
Other income, net	127,000	319,000	215,000	3,482,000
Income before income taxes	46,874,000	143,565,000	84,243,000	183,475,000
Corporate and Eliminations [Member]	'	'	'	'
Summary of segment information [Abstract]	'	'	'	'
Net sales	-2,908,000	-3,435,000	-6,591,000	-9,346,000
Cost of goods sold	-2,873,000	-3,404,000	-6,524,000	-9,248,000
Depreciation and amortization	604,000	543,000	1,208,000	1,089,000
Selling, general, and administrative expense	6,703,000	8,265,000	12,931,000	13,259,000
Insurance settlement	'	-2,437,000	'	-2,437,000
Operating income	-7,342,000	-6,402,000	-14,206,000	-12,009,000
Plumbing and Refrigeration Segment [Member] | Operating Segments [Member]	'	'	'	'
Summary of segment information [Abstract]	'	'	'	'
Net sales	397,190,000	328,673,000	735,217,000	640,487,000
Cost of goods sold	336,256,000	277,933,000	625,281,000	542,747,000
Depreciation and amortization	5,096,000	4,443,000	9,516,000	8,689,000
Selling, general, and administrative expense	23,508,000	20,382,000	44,205,000	40,509,000
Insurance settlement	'	-103,895,000	'	-103,895,000
Operating income	32,330,000	129,810,000	56,215,000	152,437,000
OEM Segment [Member] | Operating Segments [Member]	'	'	'	'
Summary of segment information [Abstract]	'	'	'	'
Net sales	255,409,000	257,044,000	495,439,000	510,831,000
Cost of goods sold	224,392,000	226,596,000	434,795,000	450,476,000
Depreciation and amortization	2,892,000	3,342,000	5,975,000	6,704,000
Selling, general, and administrative expense	4,909,000	6,167,000	10,167,000	12,389,000
Insurance settlement	'	0	'	0
Operating income	$23,216,000	$20,939,000	$44,502,000	$41,262,000

Debt_Details

Debt (Details)	6 Months Ended			6 Months Ended
In Millions, unless otherwise specified	Jun. 28, 2014	Mar. 21, 2014	Mar. 21, 2014	Jun. 28, 2014	29-May-14	Mar. 29, 2014	29-May-14
	Mueller Europe Limited [Member]	Mueller Europe Limited [Member]	Mueller Europe Limited [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Term Loan [Member]
	USD ($)	USD ($)	GBP (£)		USD ($)	USD ($)	USD ($)
Line of Credit Facility [Line Items]	'	'	'	'	'	'	'
Maturity Date	'	'	'	11-Dec-17	'	'	'
Line of credit facility maximum borrowing capacity	'	$65.90	£ 40	'	$200	$350	$200
Initial term of the Invoice Facility	'2 years	'	'	'	'	'	'
Borrowings outstanding	$23.10	'	'	'	'	'	'
Debt instrument variable rate basis	'bear interest at the latest base-lending rate published by HSBC plus 155 basis points	'	'	'	'	'	'
Basis spread on variable rate (in hundredths)	1.55%	'	'	'	'	'	'
Debt, stated interest rate (in hundredths)	2.05%	'	'	'	'	'	'

Employee_Benefits_Details

Employee Benefits (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Pension Benefits [Member]	'	'	'	'
Components of net periodic benefit cost [Abstract]	'	'	'	'
Service cost	$175	$326	$397	$701
Interest cost	2,059	2,017	4,127	4,047
Expected return on plan assets	-3,201	-2,892	-6,402	-5,690
Amortization of net (gain) loss	189	978	377	1,970
Net periodic benefit (income) cost	-778	429	-1,501	1,028
Other Benefits [Member]	'	'	'	'
Components of net periodic benefit cost [Abstract]	'	'	'	'
Service cost	87	70	176	138
Interest cost	186	32	363	312
Amortization of prior service (credit) cost	-1	1	-1	3
Amortization of net (gain) loss	-45	-58	-109	-84
Net periodic benefit (income) cost	$227	$45	$429	$369

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Income Taxes [Abstract]	'	'	'	'
Effective tax rate (in hundredths)	25.00%	36.00%	29.00%	36.00%
Reduction for U.S. production activities	($1.40)	($2.60)	'	'
Decrease in valuation allowances	-4.8	-5.7	'	'
Provision for state income taxes, net of federal benefit	1.2	2.5	'	'
Reduction for effect of foreign adjustments	'	-0.3	'	'
Amount per diluted share (in dollars per share)	$0.08	'	'	'
Unrecognized tax benefits	$2.80	'	$2.80	'

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities (Details) (USD $)

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Jun. 28, 2014

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Other Current Asset [Member]

Other Current Asset [Member]

Other Current Asset [Member]

Other Current Asset [Member]

Other Assets [Member]

Other Assets [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Cash Flow Hedging [Member]

Fair Value Hedging [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Long [Member]

Short [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Derivatives, Fair Value [Line Items]

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Open future contracts to purchase copper

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$19,600,000

$18,700,000

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Time period for open copper future contract purchases

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'13 months

'6 months

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Fair value of future contracts with gain (loss) position

'

'

'

'

'

'

438,000

-24,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other assets: Gain positions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

1,324,000

'

'

'

'

'

'

Other current assets: Gain positions

832,000

2,608,000

'

'

513,000

448,000

'

'

319,000

836,000

0

1,324,000

513,000

448,000

319,000

836,000

'

'

'

'

'

'

'

'

Other current assets: Loss positions

-52,000

-10,000

'

'

-52,000

-10,000

'

'

0

0

0

0

-52,000

-10,000

'

'

'

'

'

'

'

'

'

'

Other current liability: Gain positions

0

-340,000

'

'

0

-340,000

'

'

0

0

0

0

'

'

'

'

'

'

0

340,000

0

0

'

'

Other current liability: Loss positions

711,000

2,107,000

'

'

47,000

2,107,000

'

'

0

0

664,000

0

'

'

'

'

'

'

-47,000

-2,107,000

'

'

'

'

Other liabilities: Loss positions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-664,000

0

Assets fair value

'

'

780,000

[1]

2,598,000

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities fair value

'

'

($711,000)

[1]

($1,767,000)

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Does not include the impact of cash collateral received from or provided to counterparties.

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities Part 2 (Details)

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Feb. 20, 2013

Jun. 28, 2014

Dec. 28, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

Jun. 28, 2014

Jun. 29, 2013

USD ($)

USD ($)

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Commodity Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Foreign Currency Contracts [Member]

Inventory [Member]

Inventory [Member]

Inventory [Member]

Inventory [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

USD ($)

USD ($)

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

USD ($)

EUR (€)

USD ($)

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

USD ($)

USD ($)

USD ($)

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Property, plant, and equipment, net [Member]

Property, plant, and equipment, net [Member]

Property, plant, and equipment, net [Member]

Property, plant, and equipment, net [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

Cost of Goods Sold [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Interest Expense [Member]

Interest Expense [Member]

Interest Expense [Member]

Interest Expense [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Derivative Instruments, Gain (Loss) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) Recognized in Accumulated OCI (Effective Portion), Net of Tax

'

'

'

'

'

'

'

'

$578,000

($2,876,000)

($432,000)

($3,530,000)

'

'

'

'

'

'

'

'

'

'

'

($25,000)

($20,000)

($3,000)

($20,000)

'

'

'

'

'

'

'

'

'

'

'

($1,022,000)

$2,395,000

($1,267,000)

$1,396,000

'

'

'

'

Loss (Gain) Reclassified from Accumulated OCI into Income (Effective Portion), Net of Tax

'

'

'

'

'

'

'

'

'

'

'

'

168,000

2,596,000

459,000

2,521,000

'

'

'

'

'

'

'

'

'

'

'

-63,000

0

-237,000

0

'

'

'

'

'

'

'

'

'

'

'

0

0

0

0

Gain (loss) on the derivatives in designated and qualifying fair value hedges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-20,000

1,857,000

6,271,000

5,190,000

'

'

'

'

'

'

'

'

'

'

'

20,000

-1,928,000

-5,780,000

-4,813,000

'

'

'

'

'

'

'

'

'

'

'

Gain (loss) on undesignated derivatives

'

'

'

'

-72,000

0

1,466,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000,000

'

'

'

'

'

'

'

'

'

'

Time period for open forward contracts to purchase

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'9 months

'9 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain position for foreign currency contracts recorded in other current assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

319,000

'

836,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Period of interest rate swap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2 years

'

'

'

'

'

'

'

'

'

'

Interest rate swap, fixed interest rate (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.40%

'

'

'

'

'

'

'

'

'

'

Term loan facility, all-in fixed interest rate (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.70%

'

'

'

'

'

'

'

'

'

'

Interest rate swap maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11-Dec-17

'

'

'

'

'

'

'

'

'

Deferred net gains (losses), net of tax, included in AOCI

'

'

303,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

242,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-425,000

'

'

'

'

'

'

'

'

'

Offsetting Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross Amounts Recognized in Assets

832,000

2,608,000

513,000

448,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

319,000

'

836,000

'

'

'

'

'

'

'

'

'

'

'

'

'

0

1,324,000

'

'

'

'

'

'

'

'

Gross Amounts Offset in the Condensed Consolidating Balance Sheet

-52,000

-10,000

-52,000

-10,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

Net Amounts of Assets Presented in the Condensed Consolidating Balance Sheet

780,000

2,598,000

461,000

438,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

319,000

'

836,000

'

'

'

'

'

'

'

'

'

'

'

'

'

0

1,324,000

'

'

'

'

'

'

'

'

Financial Instruments

0

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

Cash Collateral Provided

972,000

2,051,000

972,000

2,051,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

Net Amounts of Assets

1,752,000

4,649,000

1,433,000

2,489,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

319,000

'

836,000

'

'

'

'

'

'

'

'

'

'

'

'

'

0

1,324,000

'

'

'

'

'

'

'

'

Offsetting Liabilities [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross Amounts Recognized in Liabilities

-711,000

-2,107,000

-47,000

-2,107,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

-664,000

0

'

'

'

'

'

'

'

'

Gross Amounts Offset in the Condensed Consolidating Balance Sheet

0

340,000

0

340,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

Net Amounts of Assets Presented in the Condensed Consolidating Balance Sheet

-711,000

-1,767,000

-47,000

-1,767,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

-664,000

0

'

'

'

'

'

'

'

'

Financial Instruments

0

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

Cash Collateral Provided

0

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

Net Amounts of Liabilities

($711,000)

($1,767,000)

($47,000)

($1,767,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

'

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

($664,000)

$0

'

'

'

'

'

'

'

'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 28, 2014		Jun. 29, 2013		Jun. 28, 2014		Jun. 29, 2013
Changes In Accumulated Other Comprehensive Income [Roll Forward]	'		'		'		'
Beginning balance	'		'		($10,819)		($42,623)
Other comprehensive income (loss) before reclassifications	'		'		1,636		-2,499
Amounts reclassified from AOCI	'		'		454		-1,253
Net current-period other comprehensive income	'		'		2,090		-3,752
Ending balance	-8,729		-46,375		-8,729		-46,375
Reclassification adjustments out of AOCI [Abstract]	'		'		'		'
Cost of goods sold	-557,775		-501,125		-1,053,552		-983,975
Net of tax and noncontrolling interest	-360	[1]	2,198	[2]	-1,476	[3]	474	[4]
Selling, general, and administrative expense	-35,120		-34,814		-67,303		-66,157
Cumulative Translation Adjustment [Member]	'		'		'		'
Changes In Accumulated Other Comprehensive Income [Roll Forward]	'		'		'		'
Beginning balance	'		'		-462		-3,033
Other comprehensive income (loss) before reclassifications	'		'		3,711		-6,470
Amounts reclassified from AOCI	'		'		0		0
Net current-period other comprehensive income	'		'		3,711		-6,470
Ending balance	3,249		-9,503		3,249		-9,503
Unrealized Losses/(Gains) on Derivatives [Member]	'		'		'		'
Changes In Accumulated Other Comprehensive Income [Roll Forward]	'		'		'		'
Beginning balance	'		'		1,546		-166
Other comprehensive income (loss) before reclassifications	'		'		-1,698		2,995
Amounts reclassified from AOCI	'		'		222		-2,521
Net current-period other comprehensive income	'		'		-1,476		474
Ending balance	70		308		70		308
Unrealized Losses/(Gains) on Derivatives [Member] | Amount Reclassified from AOCI [Member]	'		'		'		'
Reclassification adjustments out of AOCI [Abstract]	'		'		'		'
Cost of goods sold	208		3,967		565		3,876
Property, plant and equipment, net	-99		0		-375		0
Income tax benefit	-4		-1,371		32		-1,355
Net of tax	105		2,596		222		2,521
Noncontrolling interest	0		0		0		0
Net of tax and noncontrolling interest	105		2,596		222		2,521
Minimum Pension/OPEB Liability Adjustment [Member]	'		'		'		'
Changes In Accumulated Other Comprehensive Income [Roll Forward]	'		'		'		'
Beginning balance	'		'		-12,158		-39,527
Other comprehensive income (loss) before reclassifications	'		'		-388		893
Amounts reclassified from AOCI	'		'		232		1,268
Net current-period other comprehensive income	'		'		-156		2,161
Ending balance	-12,314		-37,366		-12,314		-37,366
Minimum Pension/OPEB Liability Adjustment [Member] | Amount Reclassified from AOCI [Member]	'		'		'		'
Reclassification adjustments out of AOCI [Abstract]	'		'		'		'
Selling, general, and administrative expense	143		921		267		1,889
Income tax expense	-22		-302		-35		-621
Net of tax	121		619		232		1,268
Noncontrolling interest	0		0		0		0
Net of tax and noncontrolling interest	121		619		232		1,268
Unrealized Gains on Equity Investments [Member]	'		'		'		'
Changes In Accumulated Other Comprehensive Income [Roll Forward]	'		'		'		'
Beginning balance	'		'		255		103
Other comprehensive income (loss) before reclassifications	'		'		9		83
Amounts reclassified from AOCI	'		'		0		0
Net current-period other comprehensive income	'		'		9		83
Ending balance	$264		$186		$264		$186
[1]	Net of tax of $275
[2]	Net of tax of $(1,308)
[3]	Net of tax of $865
[4]	Net of tax of $(328)

Acquisitions_Details

Acquisitions (Details) (USD $)	0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Feb. 28, 2014	Dec. 29, 2012	Feb. 28, 2014	Oct. 17, 2013	Aug. 31, 2013	Oct. 17, 2013
	KME Yorkshire Limited [Member]	KME Yorkshire Limited [Member]	KME Yorkshire Limited [Member]	Howell Metal Company [Member]	Howell Metal Company [Member]	Howell Metal Company [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'
Cost of acquisition	$30.10	'	'	$55.30	'	'
Pro forma net sales	'	196.1	'	'	156.3	'
Fair value of assets acquired	'	'	20.7	'	'	63
Fair value of assets acquired - receivables	'	'	'	'	'	14.6
Fair value of assets acquired - inventories	'	'	17.6	'	'	27.6
Fair value of assets acquired - property, plant and equipment	'	'	2.1	'	'	20.3
Fair value of assets acquired - other current assets	'	'	1	'	'	0.5
Fair value of liabilities assumed	'	'	15.6	'	'	11.4
Fair value of liabilities assumed - accounts payable and accrued expenses	'	'	15.2	'	'	9.9
Fair value of liabilities assumed - other current liabilities	'	'	0.4	'	'	1.5
Remaining purchase price allocated to other intangible assets	'	'	12.2	'	'	2.3
Remaining purchase price allocated to goodwill	'	'	$12.80	'	'	$1.40