Superior Industries International (SUP) 10-Q 29 Apr 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Statement	3 Months Ended
	Mar. 27, 2016shares
Entity Registrant Name	SUPERIOR INDUSTRIES INTERNATIONAL INC
Entity Central Index Key	95,552
Current Fiscal Year End Date	--12-25
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 27, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding	25,407,225
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Condensed Consolidated Income S

Condensed Consolidated Income Statements - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
NET SALES	$ 186,065	$ 173,729
Cost of sales	158,320	160,635
Restructuring Charges	30	1,872
Cost of Goods Sold, Including Restructuring Costs	158,350	162,507
GROSS PROFIT	27,715	11,222
Selling, general and administrative expenses	8,993	7,553
INCOME (LOSS) FROM OPERATIONS	18,722	3,669
Interest income, net	32	85
Other income (expense), net	268	(182)
INCOME (LOSS) BEFORE INCOME TAXES	19,022	3,572
Income tax (provision) benefit	(4,558)	762
NET INCOME (LOSS)	$ 14,464	$ 4,334
INCOME (LOSS) PER SHARE - BASIC	$ 0.56	$ 0.16
INCOME (LOSS) PER SHARE - DILUTED	0.56	0.16
DIVIDENDS DECLARED PER SHARE	$ 0.18	$ 0.18

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Net income (loss)	$ 14,464	$ 4,334
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	(1,845)	(3,725)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	1,318	(2,092)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	(266)	994
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	1,052	(1,098)
Defined benefit pension plan:
Amortization of amounts resulting from changes in actuarial assumptions	84	134
Tax provision	(33)	(50)
Pension changes, net of tax	51	84
Other comprehensive income (loss), net of tax	(742)	(4,739)
Comprehensive income	$ 13,722	$ (405)

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 27, 2016	Dec. 27, 2015
Current assets:
Cash and cash equivalents	$ 45,524	$ 52,036
Short term investments	750	950
Accounts receivable, net	112,905	112,588
Inventories	63,826	61,769
Income taxes receivable	760	1,104
Other current assets	21,458	14,476
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	2,897	2,897
Total current assets	248,120	245,820
Accrued Income Taxes, Current	5,584	6,735
Property, plant and equipment, net	230,406	234,646
Investment in and advances to unconsolidated affiliate	2,000	2,000
Non-current deferred income taxes, net	25,299	25,598
Non-current assets	34,199	31,865
Total assets	540,024	539,929
Current liabilities:
Accounts payable	23,077	20,913
Accrued expenses	44,796	46,214
Total current liabilities	73,457	73,862
Non-current income tax liabilities	4,930	4,510
Non-current deferred income tax liabilities, net	7,960	8,094
Other non-current liabilities	41,868	39,551
Commitments and contingencies (Note 14)	0	0
Shareholders' equity:
Preferred stock, no par value, Authorized - 1,000,000 shares, Issued - none	0	0
Common stock, no par value, Authorized - 100,000,000 shares, Issued and outstanding - 26,632,794 shares, (27,155,550 shares at December 29, 2013)	86,605	88,108
Accumulated other comprehensive loss	(102,455)	(101,713)
Retained earnings	427,659	427,517
Total shareholders' equity	411,809	413,912
Total liabilities and shareholders' equity	$ 540,024	$ 539,929

Condensed Consolidated Balance5

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 27, 2016	Dec. 27, 2015
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	26,727,997	26,730,247
Common stock, shares outstanding	26,727,997	26,730,247
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
NET CASH PROVIDED BY OPERATING ACTIVITIES	$ 16,041	$ (981)
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property, plant and equipment	(6,110)	(14,983)
Proceeds from sales and maturities of investments	200	200
Purchase of investments	0	(200)
Proceeds from sale of property, plant and equipment	1	1,758
Other	0	37
NET CASH USED IN INVESTING ACTIVITIES	(5,909)	(13,188)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(4,676)	(4,791)
Payments for Repurchase of Common Stock	(11,928)	(2,069)
Proceeds from exercise of stock options	179	3,871
Excess tax benefits from exercise of stock options	0	192
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES	(16,425)	(2,797)
Effect of exchange rate changes on cash	(219)	(810)
Net decrease in cash and cash equivalents	(6,512)	(17,776)
Cash and cash equivalents at the beginning of the period	52,036	62,451
Cash and cash equivalents at the end of period	$ 45,524	$ 44,675

Condensed Consolidated Stateme7

Condensed Consolidated Statement of Shareholders' Equity - 3 months ended Mar. 27, 2016 - USD ($) $ in Thousands	Total	Common Stock Including Additional Paid in Capital [Member]	Pension Plans, Defined Benefit [Member]	Accumulated Translation Adjustment [Member]	Retained Earnings [Member]	Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Share balance at Dec. 27, 2015	26,730,247	26,098,895
Balance at Dec. 27, 2015	$ 413,912	$ 88,108	$ (4,140)	$ (88,284)	$ 427,517	$ (9,289)
Net income	14,464				14,464
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	1,052					1,052
Change in employee benefit plans, net of taxes	51		51
Net foreign currency translation adjustment	$ (1,845)			(1,845)
Stock Options Exercised, Shares	14,125	10,875
Stock Options Exercised, Value	$ 179	$ 179
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		2,552
Stock Based Compensation Expense	$ 556	$ 556
Stock Repurchased and Retired During Period, Shares	(585,970)	(672,483)
Stock Repurchased and Retired During Period, Value	$ (11,928)	$ (2,238)			(9,690)
Dividends, Cash	(4,632)				(4,632)
Balance at Mar. 27, 2016	$ 411,809	$ 86,605	$ (4,089)	$ (90,129)	$ 427,659	$ (8,237)
Share balance at Mar. 27, 2016	26,727,997	25,439,839

Nature of Operations

Nature of Operations	3 Months Ended
	Mar. 27, 2016
Nature of Operations [Abstract]
Nature of Operations [Text Block]	Nature of Operations Headquartered in Southfield, Michigan, the principal business of Superior Industries International, Inc. (referred to herein as the “company” or “we,” “us” and “our”) is the design and manufacture of aluminum wheels for sale to original equipment manufacturers ("OEMs"). We are one of the largest suppliers of cast aluminum wheels to the world’s leading automobile and light truck manufacturers, with manufacturing operations in the United States and Mexico. Customers in North America represent the principal market for our products. In addition, the majority of our net sales to international customers by our North American facilities are delivered primarily to such customers' assembly operations in North America. As described in Note 6 - Business Segments, the company operates as a single integrated business and, as such, has only one operating segment - automotive wheels. Ford Motor Company ("Ford"), General Motors Company ("GM") and Toyota Motor Company ("Toyota") were our customers individually accounting for more than 10 percent of our consolidated sales in the first quarter of 2016 and together represented approximately 82 percent of our trade sales during the first quarter of 2016 . Additionally, Fiat Chrysler Automotive N.V. ("FCA") individually accounted for 8 percent of our consolidated sales during the first quarter of 2016 and together with Ford, GM and Toyota represented approximately 90 percent of our trade sales during the first quarter of 2016 . We also manufacture aluminum wheels for BMW, Mazda, Nissan, Subaru, Tesla and Volkswagen. The loss of all or a substantial portion of our sales to Ford, GM or Toyota would have a significant adverse impact on our operating results and financial condition. This risk is partially mitigated by our long-term relationships with these OEM customers and our supply arrangements, which are generally for multi-year periods. Demand for automobiles and light trucks (including SUV's and crossover vehicles) in the North American market is subject to many unpredictable factors such as changes in the general economy, gasoline prices, consumer credit availability and interest rates. Demand for aluminum wheels can be further affected by other factors, including pricing and performance compared to competitive materials such as steel. Finally, the demand for our products is influenced by shifts of market share between vehicle manufacturers and the specific market penetration of individual vehicle platforms being sold by our customers. While we historically have had long-term relationships with our customers and our supply arrangements generally are for multi-year periods, maintaining such long-term arrangements on terms acceptable to us has become increasingly difficult. Global competitive pricing pressures continue to affect our business negatively as our customers maintain and/or further develop alternative supplier options. Increasingly global procurement practices and competition, and the pressure for price reductions, may make it more difficult to maintain long-term supply arrangements with our customers. As a result, there can be no guarantees that we will be able to negotiate supply arrangements with our customers on terms acceptable to us in the future. We are engaged in ongoing programs to reduce our own costs through improved operational and procurement practices in an attempt to mitigate the impact of these pricing pressures. However, these improvement programs may not be sufficient to offset the adverse impact of ongoing pricing pressures and potential reductions in customer demand in future periods. Additional factors such as inconsistent customer ordering patterns, increasing product complexity and heightened quality standards also are making it increasingly difficult to reduce our costs. It is also possible that as we incur costs to implement improvement strategies, the initial impact of these strategies on our financial position, results of operations and cash flow may be negative. The raw materials used in producing our products are readily available and are obtained through suppliers with whom we have, in many cases, relatively long-standing trade relations.

Derivative Financial Instrument

Derivative Financial Instruments (Notes)	3 Months Ended
	Mar. 27, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Derivative Financial Instruments We use derivatives to partially offset our business exposure to foreign currency risk. We may enter into forward contracts, option contracts, swaps, collars or other derivative instruments to offset some of the risk on expected future cash flows and on certain existing assets and liabilities. However, we may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in foreign currency exchange rates. To help protect gross margins from fluctuations in foreign currency exchange rates, certain of our subsidiaries whose functional currency is the U.S. dollar hedge a portion of forecasted foreign currency costs. Generally, we may hedge portions of our forecasted foreign currency exposure associated with costs, typically for up to 33 months . We record all derivatives in the consolidated balance sheets at fair value. Our accounting treatment for these instruments is based on the hedge designation. The effective portions of cash flow hedges are recorded in Accumulated Other Comprehensive Income ("AOCI") until the hedged item is recognized in earnings. The ineffective portions of cash flow hedges are recorded in cost of sales. Derivatives that are not designated as hedging instruments are adjusted to fair value through earnings in the financial statement line item to which the derivative relates. Deferred gains and losses associated with cash flow hedges of foreign currency costs are recognized as a component of cost of sales in the same period as the related cost is recognized. Our foreign currency transactions hedged with cash flow hedges as of March 27, 2016 , are expected to occur within 1 month to 33 months . Derivative instruments designated as cash flow hedges must be de-designated as hedges when it is probable the forecasted hedged transaction will not occur in the initially identified time period or within a subsequent two-month time period. Deferred gains and losses in AOCI associated with such derivative instruments are reclassified immediately into other income and expense. Any subsequent changes in fair value of such derivative instruments are reflected in other income and expense unless they are re-designated as hedges of other transactions. We had no gains or losses recognized in other income and expense for foreign currency forward and option contracts not designated as hedging instruments during the thirteen week period ended March 27, 2016 or the year ended December 27, 2015 . The following table displays the fair value of derivatives by balance sheet line item: March 27, 2016 December 27, 2015 (Dollars in thousands) Other Non-current Assets Accrued Liabilities Other Non-current Liabilities Other Non-current Assets Accrued Liabilities Other Non-current Liabilities Foreign exchange forward contracts and collars designated as hedging instruments $ 89 $ (8,752 ) $ (4,784 ) $ 113 $ (9,629 ) $ (4,530 ) Total derivative instruments $ 89 $ (8,752 ) $ (4,784 ) $ 113 $ (9,629 ) $ (4,530 ) The following table summarizes the notional amount and estimated fair value of our derivative financial instruments: March 27, 2016 December 27, 2015 (Dollars in thousands) U.S. Dollar Notional Amount Fair Value U.S. Dollar Notional Amount Fair Value Foreign exchange forward contracts and collars designated as hedging instruments $ 120,310 $ (13,447 ) $ 162,590 $ (14,046 ) Total derivative financial instruments $ 120,310 $ (13,447 ) $ 162,590 $ (14,046 ) Notional amounts are presented on a gross basis. The notional amounts of the derivative financial instruments do not represent amounts exchanged by the parties and, therefore, are not a direct measure of our exposure to the financial risks described above. The amounts exchanged are calculated by reference to the notional amounts and by other terms of the derivatives, such as interest rates, foreign currency exchange rates, or commodity volumes and prices. The following table provides the impact of derivative instruments designated as cash flow hedges on our consolidated income statement: Thirteen Week Period Ended March 27, 2016 Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion) Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income (Effective Portion) Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) (Dollars in thousands) Foreign exchange forward contracts and collars $ 1,052 $ (3,237 ) $ 5 Total $ 1,052 $ (3,237 ) $ 5

Fair Value Measurements (Notes)

Fair Value Measurements (Notes)	3 Months Ended
	Mar. 27, 2016
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Measurements The company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis, while other assets and liabilities are measured at fair value on a nonrecurring basis, such as when we have an asset impairment. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 – Quoted prices in active markets for identical assets or liabilities. Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability. The carrying amounts for cash and cash equivalents, investments in certificates of deposit, accounts receivable, accounts payable and accrued expenses approximate their fair values due to the short period of time until maturity. Cash and Cash Equivalents Included in cash and cash equivalents are highly liquid investments that are readily convertible to known amounts of cash, and which are subject to an insignificant risk of change in value due to interest rate, quoted price, or penalty on withdrawal. A debt security is classified as a cash equivalent if it meets these criteria and if it has a remaining time to maturity of three months or less from the date of acquisition. Amounts on deposit and available upon demand, or negotiated to provide for daily liquidity without penalty, are classified as cash and cash equivalents. Time deposits, certificates of deposit, and money market accounts that meet the above criteria are reported at par value on our balance sheet and are excluded from the table below. Derivative Financial Instruments Our derivatives are over-the-counter customized derivative transactions and are not exchange traded. We estimate the fair value of these instruments using industry-standard valuation models such as a discounted cash flow. These models project future cash flows and discount the future amounts to a present value using market-based expectations for interest rates, foreign exchange rates, commodity prices, and the contractual terms of the derivative instruments. The discount rate used is the relevant interbank deposit rate (e.g., LIBOR) plus an adjustment for non-performance risk. In certain cases, market data may not be available and we may use broker quotes and models (e.g., Black-Scholes) to determine fair value. This includes situations where there is lack of liquidity for a particular currency or commodity or when the instrument is longer dated. The following table categorizes items measured at fair value at March 27, 2016 : Fair Value Measurement at Reporting Date Using Quoted Prices Significant Other Significant in Active Markets Observable Unobservable for Identical Assets Inputs Inputs March 27, 2016 Total (Level 1) (Level 2) (Level 3) (Dollars in thousands) Assets Certificates of deposit $ 750 $ — $ 750 $ — Cash surrender value 7,012 — 7,012 — Derivative contracts 89 — 89 — Total $ 7,851 $ — $ 7,851 $ — Liabilities Derivative contracts $ 13,536 $ — $ 13,536 $ — Total $ 13,536 $ — $ 13,536 $ — The following table categorizes items measured at fair value at December 27, 2015: Fair Value Measurement at Reporting Date Using Quoted Prices Significant Other Significant in Active Markets Observable Unobservable for Identical Assets Inputs Inputs December 27, 2015 Total (Level 1) (Level 2) (Level 3) (Dollars in thousands) Assets Certificates of deposit $ 950 $ — $ 950 $ — Cash surrender value 6,923 — 6,923 — Derivative contracts 113 — 113 — Total $ 7,986 $ — $ 7,986 $ — Liabilities Derivative contracts $ 14,159 $ — $ 14,159 $ — Total $ 14,159 $ — $ 14,159 $ —

Line of Credit (Notes)

Line of Credit (Notes)	3 Months Ended
	Mar. 27, 2016
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Line of Credit On December 19, 2014, we entered into a senior secured credit agreement (the "Credit Agreement") with J.P. Morgan Securities LLC, JP Morgan Chase Bank, N.A. (“JPMCB”) and Wells Fargo Bank, National Association (together with JPMCB, the “Lenders”). The Credit Agreement consists of a senior secured revolving credit facility in an initial aggregate principal amount of $100.0 million (the “Facility”). In addition, the company is entitled to request, subject to certain terms and conditions and the agreement of the Lenders, an increase in the aggregate revolving commitments under the Facility or to obtain incremental term loans in an aggregate amount not to exceed $50.0 million , which currently is uncommitted to by any lenders. We intend to use the proceeds of the Facility to finance the working capital needs, and for the general corporate purposes of the company and its subsidiaries. The company has $97.0 million of availability after giving effect to $3.0 million in outstanding letters of credit as of March 27, 2016 . The Credit Agreement expires on December 19, 2019 and borrowings under the Facility accrue interest at (i) a London interbank offered rate plus a margin of between 0.75 percent and 1.25 percent based on the total leverage ratio of Superior and its subsidiaries on a consolidated basis, (ii) a rate based on JPMCB’s prime rate plus a margin of between 0.00 percent and 0.25 percent based on the total leverage ratio of the company and its subsidiaries on a consolidated basis or (iii) a combination thereof. Commitment fees are 0.2 percent on the unused portion of the facility. The commitment fees are included as interest expense in our consolidated financial statements. Generally, all amounts under the Facility are guaranteed by certain of the U.S. subsidiaries of the company and are secured by a first priority security interest in and lien on the personal property of the company and the U.S. guarantors (as defined in the Credit Agreement) and a pledge of and first perfected security interest in the equity interests of the company’s existing and future U.S. subsidiaries and 65 percent of the equity interests in certain non-U.S. direct material subsidiaries of the company and the U.S. guarantors under the Facility. The Credit Agreement contains certain customary restrictive covenants, including, among others, financial covenants requiring the maintenance of a maximum total leverage ratio and a minimum fixed charge coverage ratio, and also includes, without limitation, covenants, in each case with certain exceptions and allowances, limiting the ability of the company and its subsidiaries to incur indebtedness, grant liens, make investments, dispose of assets, make certain restrictive payments, make optional payments and modifications of subordinated debt instruments, enter into certain transactions with affiliates, enter into swap agreements, make capital expenditures or make changes to its lines of business. At March 27, 2016 , we were in compliance with all covenants contained in the Credit Agreement. At March 27, 2016 , we had no borrowings under this facility other than the outstanding letters of credit referred to above. The Credit Agreement contains customary default provisions, representations and warranties and restrictive covenants. The Credit Agreement also contains a provision permitting the lenders to accelerate the repayment of all loans outstanding under the Facility during an event of default.

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 27, 2016
Accounting Policies [Abstract]
BasisOfPresentationSignificantAccountingPoliciesAndPriorPeriodAdjustments [Text Block]	Presentation of Condensed Consolidated Financial Statements During interim periods, we follow the accounting policies set forth in our Annual Report on Form 10-K for the fiscal year ended December 27, 2015 (the "2015 Annual Report on Form 10-K") and apply appropriate interim financial reporting standards for a fair statement of our operating results and financial position in conformity with accounting principles generally accepted in the United States of America, as codified by the Financial Accounting Standards Board ("FASB") in the Accounting Standards Codification ("ASC") (referred to herein as "U.S. GAAP"), as indicated below. Users of financial information produced for interim periods in 2016 are encouraged to read this Quarterly Report on Form 10-Q in conjunction with our consolidated financial statements and notes thereto filed with the Securities and Exchange Commission ("SEC") in our 2015 Annual Report on Form 10-K. Interim financial reporting standards require us to make estimates that are based on assumptions regarding the outcome of future events and circumstances not known at that time, including the use of estimated effective tax rates. Inevitably, some assumptions will not materialize, unanticipated events or circumstances may occur which vary from those estimates and such variations may significantly affect our future results. Additionally, interim results may not be indicative of our results for future interim periods or our annual results. We use a 4-4-5 convention for our fiscal quarters, which are thirteen week periods generally ending on the last Sunday of each calendar quarter. We refer to these thirteen week fiscal periods as “quarters” throughout this report. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the SEC’s requirements for Form 10-Q and, in our opinion, contain all adjustments, of a normal and recurring nature, which are necessary for a fair statement of (i) the condensed consolidated statements of operations for the thirteen week periods ended March 27, 2016 and March 29, 2015 , (ii) the condensed consolidated statements of comprehensive (loss) income for the thirteen week periods ended March 27, 2016 and March 29, 2015 , (iii) the condensed consolidated balance sheets at March 27, 2016 and December 27, 2015 , (iv) the condensed consolidated statements of cash flows for the thirteen week periods ended March 27, 2016 and March 29, 2015 , and (v) the condensed consolidated statement of shareholders’ equity for the thirteen week period ended March 27, 2016 . However, the accompanying unaudited condensed consolidated financial statements do not include all information and notes required by U.S. GAAP. The condensed consolidated balance sheet as of December 27, 2015 , included in this report, was derived from our 2015 audited financial statements, but does not include all disclosures required by U.S. GAAP. New Accounting Pronouncements In May 2014, the FASB issued an Accounting Standards Update ("ASU') entitled “Revenue from Contracts with Customers.” The ASU requires that an entity recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB approved a one-year deferral of the effective date. Under the standard it is required to be adopted by public business entities in annual periods beginning on or after December 15, 2017. We are evaluating the impact this guidance will have on our financial position and statement of operations. In June 2014, the FASB issued an ASU entitled "Compensation - Stock Compensation." The ASU provides guidance on when the terms of an award provide that a performance target could be achieved after the requisite service period. The new guidance becomes effective for annual reporting periods beginning after December 15, 2015, and early adoption is permitted. The adoption of this ASU had no impact on our financial position and results of operations. In February 2015, the FASB issued an ASU entitled “Consolidation.” The ASU includes amendments to the consolidation analysis which are effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. Early adoption, including adoption in interim periods, is permitted. This guidance had no impact on our financial position and statement of operations. In April 2015, the FASB issued an ASU entitled “Compensation - Retired Benefits.” The ASU provides practical expedients for the measurement date of an employer's defined benefit obligation and plan assets. The amendments in this ASU are effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period, and early adoption is permitted. This guidance had no impact on our financial position and statement of operations. In June 2015, the FASB issued an ASU entitled “Technical Corrections and Improvements.” The ASU provides changes to clarify the ASC, correct unintended application of guidance, and make minor improvements to the ASC. The amendments in this ASU that require transition guidance are effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. Early adoption is permitted, including adoption in an interim period. All other amendments will be effective upon the issuance of this update. This guidance had no impact on our financial position and statement of operations. In July 2015, the FASB issued an ASU entitled “Simplifying the Measurement of Inventory.” The ASU replaces the current lower of cost or market test with a lower of cost or net realizable value test when cost is determined on a first-in, first-out or average cost basis. The standard is effective for public entities for annual reporting periods beginning after December 15, 2016, and interim periods therein. It is to be applied prospectively and early adoption is permitted. We are evaluating the impact this guidance will have on our financial position and statement of operations. In February 2016, the FASB issued an ASU entitled "Leases." The ASU requires an entity to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. The ASU offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. For public companies, the ASU is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective adoption, with early adoption permitted. We are evaluating the impact this guidance will have on our financial position and statement of operations.

Restructuring (Notes)

Restructuring (Notes)	3 Months Ended
	Mar. 27, 2016
Restructuring [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	Restructuring On July 30, 2014, we announced the planned closure of our wheel manufacturing facility located in Rogers, Arkansas. During the fourth quarter of 2014, we shifted production to our other locations and closed operations at the Rogers facility. The closure resulted in a reduction of the workforce of approximately 500 employees. The action was undertaken in order to reduce costs and enhance our global competitive position. The results for the first quarter of 2015 reflect $1.9 million of additional costs charged to gross profit due to the closure of our Rogers facility, charges totaling $0.2 million in SG&A for the write-down of the carrying value of the aircraft we sold in February 2015 and a $0.5 million gain on the sale of the idle warehousing facility located in West Memphis, Arkansas. Additional expenses related to the Rogers facility fixed assets and other closing costs are expected to continue throughout 2016 . As noted above the operations ceased at the Rogers facility during the fourth quarter of 2014. The property is currently held for sale. Based on the current carrying value of the land and building of $2.9 million , we do not expect a loss on sale at this time. In addition, after production ceased at the facility, machinery and equipment to be held and used at our other plants will be transferred, with the carrying values depreciating over the remaining estimated useful lives of these assets. We transferred a significant amount of assets to other facilities during 2015 and we determined that some of the assets will not ultimately be transferred. For the assets that were not transferred, we recorded a $2.7 million impairment during 2015. The total cost expected to be incurred as a result of the Rogers facility closure is $15.6 million , of which $0.1 million and $1.9 million was recognized as of March 27, 2016 and March 29, 2015, respectively. The following table summarizes the Rogers, Arkansas plant closure costs and classification in the condensed consolidated statements of operations for the period ended March 27, 2016 : (Dollars in thousands) Costs Incurred Through December 27, 2015 Costs Incurred During the Thirteen Week Period Ended March 27, 2016 Costs Remaining Total Expected Costs Classification Accelerated and other depreciation of assets idled $ 7,006 $ 103 $ 672 $ 7,781 Cost of sales, Restructuring costs Severance costs 2,011 — — 2,011 Cost of sales, Restructuring costs Equipment removal and impairment, inventory write-down, lease termination and other costs 5,424 30 348 5,802 Cost of sales, Restructuring costs $ 14,441 $ 133 $ 1,020 $ 15,594 Changes in the accrued expenses related to restructuring liabilities during the thirteen weeks ended March 27, 2016 are summarized as follows: (Dollars in thousands) Balance December 28, 2014 $ 215 Restructuring accruals 114 Cash payments (304 ) Balance December 27, 2015 25 Restructuring accruals — Cash payments (1 ) Balance March 27, 2016 $ 24

Investment in Unconsolidated Af

Investment in Unconsolidated Affiliate	3 Months Ended
	Dec. 28, 2014
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Equity Method Investments and Joint Ventures Disclosure [Text Block]	Investment in Unconsolidated Affiliate On June 28, 2010, we executed a share subscription agreement (the "Agreement") with Synergies, a private aluminum wheel manufacturer based in Visakhapatnam, India, providing for our acquisition of a minority interest in Synergies. The total cash investment in Synergies amounted to $4.5 million , representing 12.6 percent of the outstanding equity shares of Synergies. Our Synergies investment is accounted for using the cost method. During 2011, a group of existing equity holders, including the company, made a loan of $1.5 million to Synergies for working capital needs. The company's share of this unsecured advance was $0.5 million . The remaining principal balance of the unsecured advance was paid in full during the first quarter of 2015. In October 2014, a typhoon caused significant damage to the facilities and operations of Synergies, and in the fourth quarter of 2014, we tested the $4.5 million carrying value of our investment for impairment. Based on our evaluation, we determined there was an other-than-temporary impairment and wrote the investment down to its estimated fair value of $2.0 million , with the $2.5 million loss recognized in income for the year ended December 28, 2014. The valuation was based on an income approach using current financial forecast data, and rates and assumptions that market participants would use in pricing the investment. There was no further impairment in 2015 or in the first quarter of 2016.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 27, 2016
Share-based Compensation [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Stock-Based Compensation 2008 Equity Incentive Plan Our 2008 Equity Incentive Plan (the "Plan") was amended and restated effective May 22, 2013 upon approval by our shareholders at our annual shareholders meeting. As amended, the Plan authorizes us to issue up to 3.5 million shares of common stock, along with non-qualified stock options, stock appreciation rights, restricted stock and performance units to our officers, key employees, non-employee directors and consultants. At March 27, 2016 , there were 2.2 million shares available for future grants under this plan. No more than 600,000 shares may be used under the plan as “full value” awards, which include restricted stock and performance stock units. It is our policy to issue shares from authorized but not issued shares upon the exercise of stock options. Options are granted at not less than fair market value on the date of grant and expire no later than ten years after the date of grant. Options and restricted shares granted under this plan generally require no less than a three year ratable vesting period. During the first three months of 2016 no stock options were granted or expired, 14,125 stock options were exercised and 18,750 options were canceled. Restricted stock awards, or “full value” awards, generally vest ratably over no less than a three year period. Shares of restricted stock granted under the Plan are considered issued and outstanding at the date of grant, have the same dividend and voting rights as other outstanding common stock, are subject to forfeiture if employment terminates prior to vesting, and are expensed ratably over the vesting period. Dividends paid on the restricted shares granted under the Plan are non-forfeitable if the restricted shares do not ultimately vest. During the first quarter of 2015, the company implemented a long term incentive program for the benefit of certain members of company management. The program was designed to strengthen employee retention and to provide a more structured incentive program to stimulate improvement in future company results. Per the terms of the program, participants were granted, in 2015 and 2016, time value restricted stock units (“RSUs”), vesting ratably over a three year time period, and performance restricted stock units (“PSUs”), with a three year cliff vesting. Upon vesting, each restricted stock award is exchangeable for one share of the company’s common stock, with accrued dividends. The PSUs are categorized further into three individual categories whose vesting is contingent upon the achievement of certain targets as follows: • 40% of the PSUs vest upon certain Return on Invested Capital targets for 2016 and 2015 units • 40% of the PSUs vest upon certain Cumulative EPS targets for 2016 units • 40% of the PSUs vest upon certain EBITDA margin targets for 2015 units • 20% of the PSUs vest upon certain market based Shareholder Return targets for 2016 and 2015 units. In the aggregate the company granted, net of forfeitures, a total of 324,642 RSUs and PSUs in 2016 and 2015, net of forfeitures, comprising: 2016 Grants • 26,841 time value based RSUs with a grant date fair value of $22.82 per unit • 32,051 time value based RSUs with a grant date fair value of $18.72 per unit • 10,736 PSUs with an initial grant date fair value of $22.82 per unit • 12,821 PSUs with an initial grant date fair value of $18.72 per unit • 42,946 market based PSUs with a grant date fair value of $22.82 per unit • 51,282 market based PSUs with a grant date fair value of $18.72 per unit 2015 Grants • 44,503 time value based RSUs with a grant date fair value of $18.78 per unit • 82,770 PSUs with an initial grant date fair value of $18.78 per unit • 20,692 market based PSUs with a grant date fair value of $24.81 per unit. Stock-based compensation expense related to our equity incentive plans in accordance with U.S. GAAP was allocated as follows: (Dollars in thousands) Thirteen Weeks Ended March 27, March 29, Cost of sales $ 76 $ 92 Selling, general and administrative expenses 480 467 Stock-based compensation expense before income taxes 556 559 Income tax benefit (133 ) (210 ) Total stock-based compensation expense after income taxes $ 423 $ 349 As of March 27, 2016 , a total of $2.8 million of unrecognized compensation cost related to non-vested awards is expected to be recognized over a weighted average period of approximately 1.5 years . There were no significant capitalized stock-based compensation costs at March 27, 2016 and December 27, 2015 .

Business Segments

Business Segments	3 Months Ended
	Mar. 27, 2016
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	Business Segments The company's Chief Executive Officer is our chief operating decision maker ("CODM") because he has final authority over performance assessment and resource allocation decisions. The CODM evaluates both consolidated and disaggregated financial information for each of the company's business units in deciding how to allocate resources and assess performance. Each manufacturing facility manufactures the same products, ships products to the same group of customers, utilizes the same cast manufacturing process and, as a result, production can generally be transferred among our facilities. Accordingly, we operate as a single integrated business and, as such, have only one operating segment - automotive wheels. Geographic Information Net sales by geographic location are as follows: (Dollars in thousands) Thirteen Weeks Ended Net sales: March 27, March 29, U.S. $ 37,396 $ 43,619 Mexico 148,669 130,110 Consolidated net sales $ 186,065 $ 173,729 Long Lived Assets Long-lived assets includes property, plant and equipment, net, by geographic location as follows: Property, plant and equipment, net: March 27, December 27, U.S. $ 42,691 $ 44,274 Mexico 187,715 190,372 Consolidated property, plant and equipment, net $ 230,406 $ 234,646

Pre-Production Costs Related to

Pre-Production Costs Related to Long-Term Supply Arrangements	3 Months Ended
	Mar. 27, 2016
Pre-Production Costs and Deferred Revenue Related to Long-Term Supply Arrangements [Abstract]
PreProductionCostsandDeferredRevenueRelatedtoLongTermSupplyArrangements [Text Block]	Preproduction Costs Related to Long-Term Supply Arrangements We incur preproduction engineering and tooling costs related to the products produced for our customers under long-term supply agreements. We expense all preproduction engineering costs for which reimbursement is not contractually guaranteed by the customer or which are in excess of the contractually guaranteed reimbursement amount. We amortize the cost of the customer-owned tooling over the expected life of the wheel program on a straight line basis. Also, we defer any reimbursements made to us by our customers and recognize the tooling reimbursement revenue over the same period in which the tooling is in use. Changes in the facts and circumstances of individual wheel programs may accelerate the amortization of both the cost of customer-owned tooling and the deferred tooling reimbursement revenues. Recognized tooling reimbursement revenues, which totaled $1.4 million and $1.7 million for the thirteen weeks ended March 27, 2016 and March 29, 2015 , respectively, are included in net sales in the condensed consolidated statements of operations. The following tables summarize the unamortized customer-owned tooling costs included in our non-current assets, and the deferred tooling revenues included in accrued liabilities and other non-current liabilities: (Dollars in Thousands) March 27, 2016 December 27, 2015 Unamortized Preproduction Costs Preproduction costs $ 76,145 $ 73,095 Accumulated amortization (59,678 ) (58,632 ) Net preproduction costs $ 16,467 $ 14,463 Deferred Tooling Revenues Accrued expenses $ 4,310 $ 2,908 Other non-current liabilities 3,175 1,266 Total deferred tooling revenues $ 7,485 $ 4,174

Income Per Share

Income Per Share	3 Months Ended
	Mar. 27, 2016
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Earnings Per Share In accordance with U.S. GAAP, basic earnings per share is computed by dividing net income for the period by the weighted average number of common shares outstanding for the period. For the purposes of calculating diluted earnings per share, net income is divided by the total of the weighted average shares outstanding plus the dilutive effect of our outstanding stock options under the treasury stock method, which includes consideration of stock-based compensation required by U.S. GAAP. (In thousands, except per share amounts) Thirteen Weeks Ended March 27, March 29, Basic Income Per Share: Reported net income $ 14,464 $ 4,334 Basic income per share $ 0.56 $ 0.16 Weighted average shares outstanding - Basic 25,603 26,860 Diluted Income Per Share: Reported net income $ 14,464 $ 4,334 Diluted income per share $ 0.56 $ 0.16 Weighted average shares outstanding 25,603 26,860 Weighted average dilutive stock options and restricted stock units 41 91 Weighted average shares outstanding - Diluted 25,644 26,951 The following potential shares of common stock were excluded from the diluted earnings per share calculations because they would have been anti-dilutive, as their exercise prices exceed the average market prices for the respective periods: for the thirteen weeks ended March 27, 2016, no options were excluded from the diluted earnings per share calculation and for the thirteen weeks ended March 29, 2015, options to purchase 8,788 shares at prices ranging from $18.37 to $19.19 were excluded from the diluted earnings per share because they would have been anti-dilutive. In addition, the performance shares discussed in Note 18 - Stock-Based Compensation are not included in the diluted income per share because the performance metrics had not been met as of the period ended March 27, 2016.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 27, 2016
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes The Company performs a quarterly review of the annual effective tax rate and makes changes if necessary based on new information or events. The estimated annual effective tax rate is forecasted quarterly using actual historical information and forward-looking estimates and applied to year-to-date ordinary income (loss). The estimated annual effective tax rate may fluctuate due to changes in forecasted annual operating income; changes in the forecasted mix of earnings by country; changes to the valuation allowance for deferred tax assets (such changes would be recorded discretely in the quarter in which they occur); changes to actual or forecasted permanent book to tax differences; impacts from future tax settlements with state, federal or foreign tax authorities (such changes would be recorded discretely in the quarter in which they occur); or impacts from tax law changes. To the extent such changes impact deferred tax assets/liabilities, these changes would generally be recorded discretely in the quarter in which they occur. The income tax provision for the thirteen weeks ended March 27, 2016 was $4.6 million , which resulted in an effective income tax rate of 24 percent . The effective tax rate for the thirteen weeks ended March 27, 2016 was lower than the statutory rate due to the change in the mix of income before taxes for entities included in our effective tax rate calculation and the effect of the business restructuring to realign our operations, which was implemented in the fourth quarter of 2015. The income tax benefit for the thirteen weeks ended March 29, 2015 , was $0.8 million , which was an effective income tax rate of 21 percent . The tax benefit for the thirteen weeks ended March 29, 2015 was lower than the benefit calculated using the U.S. federal statutory rate due to the release of certain liabilities related to uncertain tax positions as a result of the expiration of statute of limitations and certain non-deductible expenses, state income taxes (net of federal tax benefit) and interest and penalties on unrecognized tax benefits.

Short-Term Investments

Short-Term Investments	3 Months Ended
	Mar. 27, 2016
Short-term Investments [Abstract]
Cash, Cash Equivalents, and Short-term Investments [Text Block]	Short-Term Investments The company's short-term investments include certificates of deposit and fixed deposits with original maturities of three months or less. Certificates of deposit and fixed deposits whose original maturity is greater than three months and is one year or less are classified as short-term investments and certificates of deposit and fixed deposits whose maturity is greater than one year at the balance sheet date are classified as non-current assets in our condensed consolidated balance sheets. The purchase of any certificates of deposit or fixed deposits that are classified as short-term investments or non-current assets appear in the investing section of our condensed consolidated statements of cash flows. Restricted Deposits We purchase certificates of deposit that mature within twelve months and are used to secure or collateralize letters of credit securing our workers’ compensation obligations. At March 27, 2016 and December 27, 2015 , certificates of deposit totaling $0.8 million and $1.0 million , respectively, were restricted in use and were classified as short-term investments on our condensed consolidated balance sheets.

Accounts Receivable

Accounts Receivable	3 Months Ended
	Mar. 27, 2016
Receivables [Abstract]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Accounts Receivable (Dollars in thousands) March 27, 2016 December 27, 2015 Trade receivables $ 103,345 $ 103,202 Other receivables 10,787 10,253 114,132 113,455 Allowance for doubtful accounts (1,227 ) (867 ) Accounts receivable, net $ 112,905 $ 112,588

Inventories

Inventories	3 Months Ended
	Mar. 27, 2016
Inventory Disclosure [Abstract]
Inventory Disclosure [Text Block]	Inventories (Dollars in thousands) March 27, 2016 December 27, 2015 Raw materials $ 21,337 $ 19,148 Work in process 21,037 21,063 Finished goods 21,452 21,558 Inventories $ 63,826 $ 61,769 Service wheel and supplies inventory included in other non-current assets in the condensed consolidated balance sheets totaled $6.8 million and $6.9 million at March 27, 2016 and December 27, 2015 , respectively. Included in raw materials were operating supplies and spare parts totaling $9.6 million and $9.2 million on March 27, 2016 and December 27, 2015 , respectively.

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 27, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment Disclosure [Text Block]	Property, Plant and Equipment (Dollars in thousands) March 27, 2016 December 27, 2015 Land and buildings $ 73,011 $ 73,803 Machinery and equipment 492,277 486,612 Leasehold improvements and others 4,464 4,204 Construction in progress 18,735 20,455 588,487 585,074 Accumulated depreciation (358,081 ) (350,428 ) Property, plant and equipment, net $ 230,406 $ 234,646 Depreciation expense was $8.6 million and $8.5 million for the thirteen weeks ended March 27, 2016 and March 29, 2015 , respectively.

Retirement Plans

Retirement Plans	3 Months Ended
	Mar. 27, 2016
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	Retirement Plans We have an unfunded salary continuation plan covering certain directors, officers and other key members of management. We purchase life insurance policies on certain participants to provide in part for future liabilities. Cash surrender value of these policies, totaling $7.0 million and $6.9 million at March 27, 2016 and December 27, 2015 , respectively, are included in other non-current assets in the company's condensed consolidated balance sheets. Subject to certain vesting requirements, the plan provides for a benefit based on final average compensation, which becomes payable on the employee's death or upon attaining age 65 , if retired. The plan was closed to new participants effective February 3, 2011. We have measured the plan assets and obligations of our salary continuation plan for all periods presented. For the thirteen weeks ended March 27, 2016 , payments to retirees or their beneficiaries totaled approximately $0.4 million . We presently anticipate benefit payments in 2016 to total approximately $1.6 million . The following table summarizes the components of net periodic pension cost for the first quarter of 2016 and 2015 . (Dollars in thousands) Thirteen Weeks Ended March 27, 2016 March 29, 2015 Service cost $ — $ 11 Interest cost 304 307 Net amortization 84 134 Net periodic pension cost $ 388 $ 452

Common Stock Repurchase Program

Common Stock Repurchase Programs (Notes)	3 Months Ended
	Mar. 27, 2016
Common Stock Repurchase Programs [Abstract]
Common Stock Repurchase Program [Text Block]	Common Stock Repurchase Programs In March 2013, our Board of Directors approved a new stock repurchase program (the "2013 Repurchase Program") which authorized the repurchase of up to $30.0 million of our common stock. This 2013 Repurchase Program replaced the previously existing share repurchase program. Shares repurchased under the 2013 Repurchase Program totaled 1,510,759 at a cost of $30.0 million including 1,089,560 shares repurchased at a cost of $21.8 million in 2014. Accordingly, no additional shares may be repurchased under the 2013 Repurchase Program. All repurchased shares described above were canceled and retired. In October 2014, our Board of Directors approved a new stock repurchase program (the "2014 Repurchase Program") which authorized the repurchase of up to $30.0 million of our common stock. Under the 2014 Repurchase Program, we repurchased common stock from time to time on the open market or in private transactions. Shares repurchased under the 2014 Repurchase Program totaled 1,056,954 at a cost of $19.6 million , all of which was repurchased during 2015. The 2014 Repurchase Program was completed in January 2016, with purchases since December 27, 2015 of 585,970 shares for a cost of $10.3 million . The repurchased shares described above were either canceled and retired or added to treasury stock after the reincorporation in Delaware in 2015. In January 2016, our Board of Directors approved a new stock repurchase program (the “2016 Repurchase Program”), authorizing the repurchase of up to $50.0 million of common stock. Under the 2016 Repurchase Program, we may repurchase common stock from time to time on the open market or in private transactions. The timing and extent of the repurchases under the 2016 Repurchase Program will depend upon market conditions and other corporate considerations in our sole discretion. Shares repurchased under the 2016 Repurchase Program totaled 86,513 shares of company stock at a cost of $1.6 million in the first quarter of 2016.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 27, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Commitments and Contingencies Derivatives and Purchase Commitments In order to hedge exposure related to fluctuations in foreign currency rates and the cost of certain commodities used in the manufacture of our products, we periodically may purchase derivative financial instruments such as forward contracts, options or collars to offset or mitigate the impact of such fluctuations. Programs to hedge currency rate exposure may address ongoing transactions including foreign-currency-denominated receivables and payables, as well as specific transactions related to purchase obligations. Programs to hedge exposure to commodity cost fluctuations would be based on underlying physical consumption of such commodities. Historically, we have not actively engaged in substantial exchange rate hedging activities and, prior to 2014, we had not entered into any significant foreign exchange contracts. However, as a result of customer requirements, a significant shift is occurring in the currency denominated in our contracts with our customers. As a result of this change, the vast majority of our revenues in 2016 and beyond will be denominated in the U.S. dollar, rather than a more balanced mix of U.S. dollar and Mexican peso. In the past, we have relied upon significant revenues denominated in the Mexican peso to provide a "natural hedge" against foreign exchange rate changes impacting our peso-denominated costs incurred at our facilities in Mexico. Accordingly, the foreign exchange exposure associated with peso-denominated costs is a growing risk that could have a material adverse effect on our operating results. In accordance with our corporate risk management policies, we may enter into foreign currency forward and option contracts with financial institutions to protect against foreign exchange risks associated with certain existing assets and liabilities, certain firmly committed transactions and forecasted future cash flows. We have implemented a program to hedge a portion of our material foreign exchange exposures for up to approximately 33 months . We do not use derivative contracts for trading, market-making, or speculative purposes. For additional information on our derivatives, see Note 5 - Derivative Financial Instruments. When market conditions warrant, we may also enter into purchase commitments to secure the supply of certain commodities used in the manufacture of our products, such as aluminum, natural gas and other raw materials. We had several purchase commitments in place for the delivery of natural gas through 2015. These natural gas contracts are considered to be derivatives under U.S. GAAP, and when entering into these contracts, it was expected that we would take full delivery of the contracted quantities of natural gas over the normal course of business. Accordingly, at inception, these contracts qualified for the normal purchase, normal sale ("NPNS") exemption provided for under U.S. GAAP. As such, we do not account for these purchase commitments as derivatives unless there is a change in facts or circumstances in regard to the company's intent or ability to use the contracted quantities of natural gas over the normal course of business. Other We are party to various legal and environmental proceedings incidental to our business. Certain claims, suits and complaints arising in the ordinary course of business have been filed or are pending against us. Based on facts now known, we believe all such matters are adequately provided for, covered by insurance, are without merit and/or involve such amounts that would not materially adversely affect our consolidated results of operations, cash flows or financial position. For additional information concerning contingencies, risks and uncertainties, see Note 20 – Risk Management.

Risk Management

Risk Management	3 Months Ended
	Mar. 27, 2016
Risks and Uncertainties [Abstract]
Concentration Risk Disclosure [Text Block]	Risk Management We are subject to various risks and uncertainties in the ordinary course of business due, in part, to the competitive global nature of the industry in which we operate, changing commodity prices for the materials used in the manufacture of our products and the development of new products. The functional currency of certain foreign operations in Mexico is the Mexican peso. The settlement of accounts receivable and accounts payable for our operations in Mexico requires the transfer of funds denominated in the Mexican peso, the value of which decreased 2 percent in relation to the U.S. dollar in the first quarter of 2016 . Foreign exchange gains totaled $0.2 million in the first quarter of 2016 and foreign exchange losses totaled $0.2 million in the first quarter of 2015. All transaction gains and losses are included in other income (expense) in the condensed consolidated statements of operations. As it relates to foreign currency translation gains and losses, however, since 1990, the Mexican peso has experienced periods of relative stability followed by periods of major declines in value. The impact of these changes in value relative to our Mexico operations resulted in a cumulative unrealized translation loss at March 27, 2016 of $90.1 million . Translation gains and losses are included in other comprehensive income in the condensed consolidated statements of comprehensive income (loss). When market conditions warrant, we may also enter into purchase commitments to secure the supply of certain commodities used in the manufacture of our products, such as aluminum, natural gas and other raw materials. At March 27, 2016 we did not have any purchase commitments in place for the delivery of aluminum, natural gas or other raw materials in 2016.

Significant Accounting Polici28

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 27, 2016
Accounting Policies [Abstract]
Derivatives, Methods of Accounting, Hedging Derivatives [Policy Text Block]	Deferred gains and losses associated with cash flow hedges of foreign currency costs are recognized as a component of cost of sales in the same period as the related cost is recognized. Derivative Financial Instruments We use derivatives to partially offset our business exposure to foreign currency risk. We may enter into forward contracts, option contracts, swaps, collars or other derivative instruments to offset some of the risk on expected future cash flows and on certain existing assets and liabilities. However, we may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in foreign currency exchange rates. To help protect gross margins from fluctuations in foreign currency exchange rates, certain of our subsidiaries whose functional currency is the U.S. dollar hedge a portion of forecasted foreign currency costs. Generally, we may hedge portions of our forecasted foreign currency exposure associated with costs, typically for up to 33 months . We record all derivatives in the consolidated balance sheets at fair value. Our accounting treatment for these instruments is based on the hedge designation. The effective portions of cash flow hedges are recorded in Accumulated Other Comprehensive Income ("AOCI") until the hedged item is recognized in earnings. The ineffective portions of cash flow hedges are recorded in cost of sales. Our foreign currency transactions hedged with cash flow hedges as of March 27, 2016 , are expected to occur within 1 month to 33 months . Derivative instruments designated as cash flow hedges must be de-designated as hedges when it is probable the forecasted hedged transaction will not occur in the initially identified time period or within a subsequent two-month time period. Deferred gains and losses in AOCI associated with such derivative instruments are reclassified immediately into other income and expense. Any subsequent changes in fair value of such derivative instruments are reflected in other income and expense unless they are re-designated as hedges of other transactions. We had no gains or losses recognized in other income and expense for foreign currency forward and option contracts not designated as hedging instruments during the thirteen week period ended March 27, 2016 or the year ended December 27, 2015 .
Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block]	Derivatives that are not designated as hedging instruments are adjusted to fair value through earnings in the financial statement line item to which the derivative relates.
Fair Value Measurement, Policy [Policy Text Block]	Fair Value Measurements The company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis, while other assets and liabilities are measured at fair value on a nonrecurring basis, such as when we have an asset impairment. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 – Quoted prices in active markets for identical assets or liabilities. Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability.
Basis of Accounting, Policy [Policy Text Block]	During interim periods, we follow the accounting policies set forth in our Annual Report on Form 10-K for the fiscal year ended December 27, 2015 (the "2015 Annual Report on Form 10-K") and apply appropriate interim financial reporting standards for a fair statement of our operating results and financial position in conformity with accounting principles generally accepted in the United States of America, as codified by the Financial Accounting Standards Board ("FASB") in the Accounting Standards Codification ("ASC") (referred to herein as "U.S. GAAP"), as indicated below. Users of financial information produced for interim periods in 2016 are encouraged to read this Quarterly Report on Form 10-Q in conjunction with our consolidated financial statements and notes thereto filed with the Securities and Exchange Commission ("SEC") in our 2015 Annual Report on Form 10-K. We use a 4-4-5 convention for our fiscal quarters, which are thirteen week periods generally ending on the last Sunday of each calendar quarter. We refer to these thirteen week fiscal periods as “quarters” throughout this report. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the SEC’s requirements for Form 10-Q and, in our opinion, contain all adjustments, of a normal and recurring nature, which are necessary for a fair statement of (i) the condensed consolidated statements of operations for the thirteen week periods ended March 27, 2016 and March 29, 2015 , (ii) the condensed consolidated statements of comprehensive (loss) income for the thirteen week periods ended March 27, 2016 and March 29, 2015 , (iii) the condensed consolidated balance sheets at March 27, 2016 and December 27, 2015 , (iv) the condensed consolidated statements of cash flows for the thirteen week periods ended March 27, 2016 and March 29, 2015 , and (v) the condensed consolidated statement of shareholders’ equity for the thirteen week period ended March 27, 2016 . However, the accompanying unaudited condensed consolidated financial statements do not include all information and notes required by U.S. GAAP. The condensed consolidated balance sheet as of December 27, 2015 , included in this report, was derived from our 2015 audited financial statements, but does not include all disclosures required by U.S. GAAP.
Use of Estimates, Policy [Policy Text Block]	Interim financial reporting standards require us to make estimates that are based on assumptions regarding the outcome of future events and circumstances not known at that time, including the use of estimated effective tax rates. Inevitably, some assumptions will not materialize, unanticipated events or circumstances may occur which vary from those estimates and such variations may significantly affect our future results. Additionally, interim results may not be indicative of our results for future interim periods or our annual results.
Earnings Per Share, Policy [Policy Text Block]	In accordance with U.S. GAAP, basic earnings per share is computed by dividing net income for the period by the weighted average number of common shares outstanding for the period. For the purposes of calculating diluted earnings per share, net income is divided by the total of the weighted average shares outstanding plus the dilutive effect of our outstanding stock options under the treasury stock method, which includes consideration of stock-based compensation required by U.S. GAAP.
Cash and Cash Equivalents, Policy [Policy Text Block]	The company's short-term investments include certificates of deposit and fixed deposits with original maturities of three months or less. Certificates of deposit and fixed deposits whose original maturity is greater than three months and is one year or less are classified as short-term investments and certificates of deposit and fixed deposits whose maturity is greater than one year at the balance sheet date are classified as non-current assets in our condensed consolidated balance sheets.
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	New Accounting Pronouncements In May 2014, the FASB issued an Accounting Standards Update ("ASU') entitled “Revenue from Contracts with Customers.” The ASU requires that an entity recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB approved a one-year deferral of the effective date. Under the standard it is required to be adopted by public business entities in annual periods beginning on or after December 15, 2017. We are evaluating the impact this guidance will have on our financial position and statement of operations. In June 2014, the FASB issued an ASU entitled "Compensation - Stock Compensation." The ASU provides guidance on when the terms of an award provide that a performance target could be achieved after the requisite service period. The new guidance becomes effective for annual reporting periods beginning after December 15, 2015, and early adoption is permitted. The adoption of this ASU had no impact on our financial position and results of operations. In February 2015, the FASB issued an ASU entitled “Consolidation.” The ASU includes amendments to the consolidation analysis which are effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. Early adoption, including adoption in interim periods, is permitted. This guidance had no impact on our financial position and statement of operations.

Derivative Financial Instrume29

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 27, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value, by Balance Sheet Grouping [Table Text Block]	The following table displays the fair value of derivatives by balance sheet line item: March 27, 2016 December 27, 2015 (Dollars in thousands) Other Non-current Assets Accrued Liabilities Other Non-current Liabilities Other Non-current Assets Accrued Liabilities Other Non-current Liabilities Foreign exchange forward contracts and collars designated as hedging instruments $ 89 $ (8,752 ) $ (4,784 ) $ 113 $ (9,629 ) $ (4,530 ) Total derivative instruments $ 89 $ (8,752 ) $ (4,784 ) $ 113 $ (9,629 ) $ (4,530 )
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	The following table summarizes the notional amount and estimated fair value of our derivative financial instruments: March 27, 2016 December 27, 2015 (Dollars in thousands) U.S. Dollar Notional Amount Fair Value U.S. Dollar Notional Amount Fair Value Foreign exchange forward contracts and collars designated as hedging instruments $ 120,310 $ (13,447 ) $ 162,590 $ (14,046 ) Total derivative financial instruments $ 120,310 $ (13,447 ) $ 162,590 $ (14,046 )
Derivative Instruments, Gain (Loss) [Table Text Block]	The following table provides the impact of derivative instruments designated as cash flow hedges on our consolidated income statement: Thirteen Week Period Ended March 27, 2016 Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion) Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income (Effective Portion) Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) (Dollars in thousands) Foreign exchange forward contracts and collars $ 1,052 $ (3,237 ) $ 5 Total $ 1,052 $ (3,237 ) $ 5

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 27, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]	The following table categorizes items measured at fair value at December 27, 2015: Fair Value Measurement at Reporting Date Using Quoted Prices Significant Other Significant in Active Markets Observable Unobservable for Identical Assets Inputs Inputs December 27, 2015 Total (Level 1) (Level 2) (Level 3) (Dollars in thousands) Assets Certificates of deposit $ 950 $ — $ 950 $ — Cash surrender value 6,923 — 6,923 — Derivative contracts 113 — 113 — Total $ 7,986 $ — $ 7,986 $ — Liabilities Derivative contracts $ 14,159 $ — $ 14,159 $ — Total $ 14,159 $ — $ 14,159 $ —

Restructuring (Tables)

Restructuring (Tables)	3 Months Ended
	Mar. 27, 2016
Restructuring [Abstract]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	Changes in the accrued expenses related to restructuring liabilities during the thirteen weeks ended March 27, 2016 are summarized as follows: (Dollars in thousands) Balance December 28, 2014 $ 215 Restructuring accruals 114 Cash payments (304 ) Balance December 27, 2015 25 Restructuring accruals — Cash payments (1 ) Balance March 27, 2016 $ 24
Restructuring and Related Costs [Table Text Block]	Restructuring On July 30, 2014, we announced the planned closure of our wheel manufacturing facility located in Rogers, Arkansas. During the fourth quarter of 2014, we shifted production to our other locations and closed operations at the Rogers facility. The closure resulted in a reduction of the workforce of approximately 500 employees. The action was undertaken in order to reduce costs and enhance our global competitive position. The results for the first quarter of 2015 reflect $1.9 million of additional costs charged to gross profit due to the closure of our Rogers facility, charges totaling $0.2 million in SG&A for the write-down of the carrying value of the aircraft we sold in February 2015 and a $0.5 million gain on the sale of the idle warehousing facility located in West Memphis, Arkansas. Additional expenses related to the Rogers facility fixed assets and other closing costs are expected to continue throughout 2016 . As noted above the operations ceased at the Rogers facility during the fourth quarter of 2014. The property is currently held for sale. Based on the current carrying value of the land and building of $2.9 million , we do not expect a loss on sale at this time. In addition, after production ceased at the facility, machinery and equipment to be held and used at our other plants will be transferred, with the carrying values depreciating over the remaining estimated useful lives of these assets. We transferred a significant amount of assets to other facilities during 2015 and we determined that some of the assets will not ultimately be transferred. For the assets that were not transferred, we recorded a $2.7 million impairment during 2015. The total cost expected to be incurred as a result of the Rogers facility closure is $15.6 million , of which $0.1 million and $1.9 million was recognized as of March 27, 2016 and March 29, 2015, respectively. The following table summarizes the Rogers, Arkansas plant closure costs and classification in the condensed consolidated statements of operations for the period ended March 27, 2016 : (Dollars in thousands) Costs Incurred Through December 27, 2015 Costs Incurred During the Thirteen Week Period Ended March 27, 2016 Costs Remaining Total Expected Costs Classification Accelerated and other depreciation of assets idled $ 7,006 $ 103 $ 672 $ 7,781 Cost of sales, Restructuring costs Severance costs 2,011 — — 2,011 Cost of sales, Restructuring costs Equipment removal and impairment, inventory write-down, lease termination and other costs 5,424 30 348 5,802 Cost of sales, Restructuring costs $ 14,441 $ 133 $ 1,020 $ 15,594

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 27, 2016
Share-based Compensation [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	Stock-based compensation expense related to our equity incentive plans in accordance with U.S. GAAP was allocated as follows: (Dollars in thousands) Thirteen Weeks Ended March 27, March 29, Cost of sales $ 76 $ 92 Selling, general and administrative expenses 480 467 Stock-based compensation expense before income taxes 556 559 Income tax benefit (133 ) (210 ) Total stock-based compensation expense after income taxes $ 423 $ 349

Business Segments (Tables)

Business Segments (Tables)	3 Months Ended
	Mar. 27, 2016
Segment Reporting [Abstract]
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Net sales by geographic location are as follows: (Dollars in thousands) Thirteen Weeks Ended Net sales: March 27, March 29, U.S. $ 37,396 $ 43,619 Mexico 148,669 130,110 Consolidated net sales $ 186,065 $ 173,729 Long Lived Assets Long-lived assets includes property, plant and equipment, net, by geographic location as follows: Property, plant and equipment, net: March 27, December 27, U.S. $ 42,691 $ 44,274 Mexico 187,715 190,372 Consolidated property, plant and equipment, net $ 230,406 $ 234,646

Pre-Production Costs Related 34

Pre-Production Costs Related to Long-Term Supply Arrangements (Tables)	3 Months Ended
	Mar. 27, 2016
Pre-Production Costs and Deferred Revenue Related to Long-Term Supply Arrangements [Abstract]
Pre-Production Costs and Deferred Revenue Related to Long-Term Supply Arrangements [Table Text Block]	e following tables summarize the unamortized customer-owned tooling costs included in our non-current assets, and the deferred tooling revenues included in accrued liabilities and other non-current liabilities: (Dollars in Thousands) March 27, 2016 December 27, 2015 Unamortized Preproduction Costs Preproduction costs $ 76,145 $ 73,095 Accumulated amortization (59,678 ) (58,632 ) Net preproduction costs $ 16,467 $ 14,463 Deferred Tooling Revenues Accrued expenses $ 4,310 $ 2,908 Other non-current liabilities 3,175 1,266 Total deferred tooling revenues $ 7,485 $ 4,174

Income Per Share (Tables)

Income Per Share (Tables)	3 Months Ended
	Mar. 27, 2016
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	(In thousands, except per share amounts) Thirteen Weeks Ended March 27, March 29, Basic Income Per Share: Reported net income $ 14,464 $ 4,334 Basic income per share $ 0.56 $ 0.16 Weighted average shares outstanding - Basic 25,603 26,860 Diluted Income Per Share: Reported net income $ 14,464 $ 4,334 Diluted income per share $ 0.56 $ 0.16 Weighted average shares outstanding 25,603 26,860 Weighted average dilutive stock options and restricted stock units 41 91 Weighted average shares outstanding - Diluted 25,644 26,951

Accounts Receivable (Tables)

Accounts Receivable (Tables)	3 Months Ended
	Mar. 27, 2016
Receivables [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	(Dollars in thousands) March 27, 2016 December 27, 2015 Trade receivables $ 103,345 $ 103,202 Other receivables 10,787 10,253 114,132 113,455 Allowance for doubtful accounts (1,227 ) (867 ) Accounts receivable, net $ 112,905 $ 112,588

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 27, 2016
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	Inventories (Dollars in thousands) March 27, 2016 December 27, 2015 Raw materials $ 21,337 $ 19,148 Work in process 21,037 21,063 Finished goods 21,452 21,558 Inventories $ 63,826 $ 61,769

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 27, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Table Text Block]	Property, Plant and Equipment (Dollars in thousands) March 27, 2016 December 27, 2015 Land and buildings $ 73,011 $ 73,803 Machinery and equipment 492,277 486,612 Leasehold improvements and others 4,464 4,204 Construction in progress 18,735 20,455 588,487 585,074 Accumulated depreciation (358,081 ) (350,428 ) Property, plant and equipment, net $ 230,406 $ 234,646

Retirement Plans (Tables)

Retirement Plans (Tables)	3 Months Ended
	Mar. 27, 2016
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	he following table summarizes the components of net periodic pension cost for the first quarter of 2016 and 2015 . (Dollars in thousands) Thirteen Weeks Ended March 27, 2016 March 29, 2015 Service cost $ — $ 11 Interest cost 304 307 Net amortization 84 134 Net periodic pension cost $ 388 $ 452

Nature of Operations (Details)

Nature of Operations (Details)	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Ford, GM, Toyota, Chrysler Companies [Member]
Concentration Risk [Line Items]
Percentage of total revenue	82.00%	90.00%

Derivative Financial Instrume41

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Dec. 31, 2015	Dec. 27, 2015
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	$ 120,310		$ 162,590
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ (1,052)
Maximum Remaining Maturity of Foreign Currency Derivatives	33 months
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (3,237)
Gain (Loss) on Derivative Instruments, Net, Pretax	5
Derivative Instruments in Hedges, Liabilities, at Fair Value	(13,447)		(14,046)
Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	(8,752)		(9,629)
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Assets at Fair Value	89	$ 113
Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	(4,784)		(4,530)
Foreign Exchange Option [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	120,310		162,590
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	(13,447)		(14,046)
Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(1,052)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(3,237)
Gain (Loss) on Derivative Instruments, Net, Pretax	5
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	(8,752)		(9,629)
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Assets at Fair Value	89	$ 113
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	$ (4,784)		$ (4,530)

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2014	Mar. 27, 2016	Dec. 31, 2015	Dec. 27, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost Method Investments				$ 2,000
Cost-method Investments, Other than Temporary Impairment	$ 2,500
Cash Surrender Value, Fair Value Disclosure		$ 7,012	$ 6,923
Assets, Fair Value Disclosure		7,851		7,986
Financial Liabilities Fair Value Disclosure		13,536		14,159
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0		0
Financial Liabilities Fair Value Disclosure		0		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		7,851		7,986
Financial Liabilities Fair Value Disclosure		13,536		14,159
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0		0
Financial Liabilities Fair Value Disclosure		0		0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Flow Hedge Derivative Instrument Assets at Fair Value		89
Derivative Asset				113
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		13,536		14,159
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		0	0
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		89	113
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		13,536		14,159
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		0	0
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		0		0
Cash Surrender Value [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Surrender Value, Fair Value Disclosure		0			$ 0
Cash Surrender Value [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Surrender Value, Fair Value Disclosure		7,012	$ 6,923
Cash Surrender Value [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Surrender Value, Fair Value Disclosure		0			$ 0
Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Restricted		750		950
Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Restricted		0		0
Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Restricted		750		950
Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Restricted		$ 0		$ 0

Line of Credit (Details)

Line of Credit (Details) - USD ($) $ in Millions	Dec. 14, 2014	Mar. 27, 2016	Dec. 19, 2014
Debt Instrument [Line Items]
Debt Intrument, Collateral, Percent of non US equity	65.00%
Revolving Credit Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	JPMCB’s prime rate
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.20%
Revolving Credit Facility [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	London interbank
J.P. Morgan Chase Bank N.A. and Wells Fargo Bank N.A. [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Line of Credit, Accordian Feature, Increase Limit			$ 50
Line of Credit Facility, Maximum Borrowing Capacity			$ 100
Line of Credit Facility, Remaining Borrowing Capacity		$ 97
Letters of Credit Outstanding, Amount		$ 3
Minimum [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Minimum [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Maximum [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Maximum [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%

Restructuring (Details)

Restructuring (Details) $ in Thousands	3 Months Ended		12 Months Ended	24 Months Ended
	Mar. 27, 2016USD ($)	Mar. 29, 2015USD ($)	Dec. 27, 2015USD ($)	Dec. 27, 2015USD ($)	Dec. 28, 2014USD ($)
Restructuring Cost and Reserve [Line Items]
Property, Plant and Equipment, Net	$ 230,406		$ 234,646	$ 234,646
Restructuring Reserve	24		25	25	$ 215
Restructuring Charges	30	$ 1,872
Payments for Restructuring	$ (1)		(304)
Rogers, Arkansas facility closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	500
Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Accelerated Depreciation	$ 103		7,006
Restructuring and Related Cost, Expected Cost Remaining	1,020
Expected Restructuring Charges	15,594
Restructuring and Related Cost, Incurred Cost	133		14,441
Restructuring Charges		1,900
Accelerated Depreciation [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	672
Expected Restructuring Charges	7,781
One-time Termination Benefits [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0
Expected Restructuring Charges	2,011
Restructuring and Related Cost, Incurred Cost	0		2,011
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Restructuring Charges	15,600
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	348
Expected Restructuring Charges	5,802
Restructuring and Related Cost, Incurred Cost	30		2,700	$ 5,424
Restructuring Charges, Excluding Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0		$ 114
Rogers, Arkansas facility [Member] | Rogers, Arkansas facility closure [Member]
Restructuring Cost and Reserve [Line Items]
Property, Plant and Equipment, Net	$ 2,900	$ 500

Restructuring Property, plant a

Restructuring Property, plant and equipment (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 27, 2016USD ($)	Mar. 29, 2015USD ($)	Dec. 27, 2015USD ($)
Property, Plant and Equipment [Line Items]
Restructuring Charges	$ 30	$ 1,872
Property, plant and equipment, net	230,406		$ 234,646
Payments for Restructuring	$ (1)		$ (304)
Rogers, Arkansas facility closure [Member]
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	500
Rogers, Arkansas facility closure [Member] | Rogers, Arkansas facility [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 2,900	500
Cost of Sales [Member] | Rogers, Arkansas facility closure [Member]
Property, Plant and Equipment [Line Items]
Restructuring Charges		$ 1,900
Restructuring and Related Cost, Expected Cost	15,594
Selling, General and Administrative Expenses [Member]
Property, Plant and Equipment [Line Items]
Other Depreciation and Amortization	200
Restructuring Costs, All Costs [Member] | Cost of Sales [Member] | Rogers, Arkansas facility closure [Member]
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost	$ 15,600

Investment in Unconsolidated 46

Investment in Unconsolidated Affiliate (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 28, 2014	Dec. 25, 2011	Mar. 27, 2016	Dec. 27, 2015
Investments in and Advances to Affiliates [Line Items]
Cost Method Investments, Original Cost				$ 4.5
Investment owned, percent of shares outstanding			1260.00%
Affiliate borrowings from all parties		$ 1.5
Advances to Affiliate		$ 0.5
Cost Method Investments				$ 2
Cost-method Investments, Other than Temporary Impairment	$ 2.5

Stock-Based Compensation Stock

Stock-Based Compensation Stock Option Activity (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	324,642
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	3,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	2,200,000
Full Value Awards, Maximum Number of Shares Authorized Under Plan	600,000
Stock Options Exercised, Shares	14,125
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	18,750
Capitalized share based compensation cost	$ 0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 2,800,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 6 months
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	26,841		44,503
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	10,736		82,770
Performance Shares [Member] | Employment agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period, Weighted Average Grant Date Fair Value	$ 22.82		$ 18.78
Market Based Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	42,946		20,692
Market Based Performance Stock Units [Member] | Employment agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period, Weighted Average Grant Date Fair Value	$ 22.82		$ 24.81
Maximum [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Chief Executive Officer [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	32,051
Chief Executive Officer [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	12,821
Chief Executive Officer [Member] | Performance Shares [Member] | Employment agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period, Weighted Average Grant Date Fair Value	$ 18.72
Chief Executive Officer [Member] | Market Based Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period	51,282
Chief Executive Officer [Member] | Market Based Performance Stock Units [Member] | Employment agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Grants in Period, Weighted Average Grant Date Fair Value	$ 18.72

Stock-Based Compensation Stock-

Stock-Based Compensation Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 556	$ 559
Income tax benefit	133	210
Total stock-based compensation expense after income taxes	423	349
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	76	92
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 480	$ 467

Business Segments (Details)

Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 186,065	$ 173,729
Property, plant and equipment, net	230,406		$ 234,646
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	37,396	43,619
Property, plant and equipment, net	42,691		44,274
MEXICO
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	148,669	$ 130,110
Property, plant and equipment, net	$ 187,715		$ 190,372

Pre-Production Costs Related 50

Pre-Production Costs Related to Long-Term Supply Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Unamortized Preproduction Costs [Abstract]
Preproduction costs	$ 76,145		$ 73,095
Accumulated amortization	(59,678)		(58,632)
Net preproduction costs	16,467		14,463
Deferred Revenue [Abstract]
Accrued expenses	4,310		2,908
Other non-current liabilities	3,175		1,266
Total deferred tooling revenues	7,485		$ 4,174
Deferred Revenue, Revenue Recognized	$ 1,400	$ 1,700

Income Per Share (Details)

Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Sep. 28, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Price Range, Lower Range Limit	$ 18.37
Antidilutive Securities Excluded from Computation of Earnings Per Share, Price Range, Upper Range Limit	$ 19.19
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			8,788
Net income (loss)	$ 14,464	$ 4,334
Basic income (loss) per share	$ 0.56	$ 0.16
Weighted average shares outstanding, basic	25,603,000	26,860,000
Diluted income (loss) per share	$ 0.56	$ 0.16
Weighted average dilutive stock options	41,000	91,000
Weighted average shares outstanding, diluted	25,644,000	26,951,000

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Income Tax Examination [Line Items]
Deferred Tax Assets, Valuation Allowance			$ 3,900
Income tax (provision) benefit	$ (4,558)	$ 762
Effective Income Tax Rate, Continuing Operations	24.00%	(21.00%)

Income Taxes Unrecognized Tax B

Income Taxes Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Income Tax Examination [Line Items]
Deferred Tax Assets, Valuation Allowance			$ 3,900
Income Tax Expense (Benefit)	$ 4,558	$ (762)

Income Taxes Tax Jurisdictions

Income Taxes Tax Jurisdictions (Details)	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Income Tax Examination [Line Items]
Effective Income Tax Rate Reconciliation, Percent	24.00%	(21.00%)

Short-Term Investments (Details

Short-Term Investments (Details) - USD ($) $ in Millions	Mar. 27, 2016	Dec. 27, 2015
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash and Investments, Current	$ 0.8	$ 1

Accounts Receivable (Details)

Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 27, 2016	Dec. 27, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 103,345	$ 103,202
Other receivables	10,787	10,253
Receivables, current	114,132	113,455
Allowance for doubtful accounts	(1,227)	(867)
Accounts receivable, net	$ 112,905	$ 112,588

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Mar. 27, 2016	Dec. 27, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 21,337	$ 19,148
Work in process	21,037	21,063
Finished goods	21,452	21,558
Inventories	63,826	61,769
Inventory, noncurrent	6,800	6,900
Supplies inventory	$ 9,600	$ 9,200

Property, Plant and Equipment58

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015
Property, Plant and Equipment [Line Items]
Deferred Revenue, Revenue Recognized	$ 1,400	$ 1,700
Property, plant and equipment, gross	588,487		$ 585,074
Accumulated depreciation	(358,081)		(350,428)
Property, plant and equipment, net	230,406		234,646
Depreciation expense	8,600	$ 8,500
Land and buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	73,011		73,803
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	492,277		486,612
Leasehold improvements and others [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,464		4,204
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 18,735		$ 20,455

Retirement Plans (Details)

Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Cash Surrender Value of Life Insurance	$ 7,000		$ 6,900
Benefits Payable, Age	65
Benefits paid	$ 400
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	1,600
Service cost	0	$ 11
Interest cost	304	307
Net amortization	84	134
Net periodic pension cost	$ 388	$ 452

Common Stock Repurchase Progr60

Common Stock Repurchase Programs (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended		22 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015	Dec. 28, 2014	Dec. 28, 2014	Oct. 14, 2014	Mar. 31, 2013
Equity, Class of Treasury Stock [Line Items]
Common Shares Purchased and Retired Under Repurchase Program, Total					1,510,759
Payments for Repurchase of Common Stock	$ (11,928)	$ (2,069)	$ 19,600	$ (21,800)	$ (30,000)
Stock Repurchased and Retired During Period, Shares	585,970		1,056,954	1,089,560
2013 Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 50,000						$ 30,000
2014 Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount						$ 30,000
2014 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Payments for Repurchase of Common Stock	10,300
2016 Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Payments for Repurchase of Common Stock	$ (1,600)
Stock Repurchased and Retired During Period, Shares	86,513

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended		22 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Dec. 27, 2015	Dec. 28, 2014	Dec. 28, 2014	Oct. 14, 2014
Other Commitments [Line Items]
Property, plant and equipment, net	$ 230,406		$ 234,646
Restricted Stock, Grants in Period	324,642
Common Shares Purchased and Retired Under Repurchase Program, Total					1,510,759
Payments for Repurchase of Common Stock	$ 11,928	$ 2,069	$ (19,600)	$ 21,800	$ 30,000
Stock Repurchased and Retired During Period, Shares	585,970		1,056,954	1,089,560
Payments to Acquire Property, Plant, and Equipment	$ 6,110	$ 14,983
Maximum Length of Time, Foreign Currency Cash Flow Hedge	33 months
2014 Program [Member]
Other Commitments [Line Items]
Stock Repurchase Program, Authorized Amount						$ 30,000
Performance Shares [Member]
Other Commitments [Line Items]
Restricted Stock, Grants in Period	10,736		82,770

Risk Management (Details)

Risk Management (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Risks and Uncertainties [Abstract]
Foreign currency exchange rate, Mexican peso to U.S. dollar, percentage change in period	2.00%
Foreign Currency Transaction Gain (Loss), before Tax	$ 0.2	$ (0.2)
MEXICO
Concentration Risk [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ 90.1

restricted cash and investments

restricted cash and investments (Details) - USD ($) $ in Millions	Mar. 27, 2016	Dec. 27, 2015
restricted Cash and Cash Equivalents and investments [Abstract]
Restricted Cash and Investments, Current	$ 0.8	$ 1

cumulative unrealized translati

cumulative unrealized translation gains and losses (Details) $ in Millions	Mar. 27, 2016USD ($)
MEXICO
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ 90.1