Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Nature of Operations [Text Block]

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.

Fair Value Measurement, Policy [Policy Text Block]

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.

Derivatives, Methods of Accounting, Hedging Derivatives [Policy Text Block]

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.

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 accounting treatment for these instruments is based on the hedge designation. The effective portions of cash flow hedges are recorded in AOCI until the hedged item is recognized in earnings. The ineffective portions of cash flow hedges are recorded in cost of sales.

Derivatives, Policy [Policy Text Block]

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 commodity. At December 31, 2015 we held forward currency exchange contracts discussed below. At December 31, 2014 we held derivative financial instruments as well as the natural gas contracts discussed below.

We account for our derivative instruments as either assets or liabilities and carry them at fair value.

For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash flow hedges, the effective portion of the gain or loss on the derivative instrument is reported as a component of accumulated other comprehensive income ("AOCI") in shareholders’ equity and reclassified into income in the same period or periods during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument, if any, is recognized in current income. To receive hedge accounting treatment, cash flow hedges must be highly effective in offsetting changes to expected future cash flows on hedged transactions. For forward exchange contracts designated as cash flow hedges, changes in the time value are included in the definition of hedge effectiveness. Accordingly, any gains or losses related to this component are reported as a component of AOCI in shareholders’ equity and reclassified into income in the same period or periods during which the hedged transaction affects earnings. Derivatives that do not qualify as hedges are adjusted to fair value through current income.

Segment Reporting, Policy [Policy Text Block]

As described in Note 5 - Business Segments, the company operates as a single integrated business and, as such, has only one operating segment - automotive wheels.

Basis of Accounting, Policy [Policy Text Block]

Our fiscal year is the 52- or 53-week period ending generally on the last Sunday of the calendar year. The fiscal years 2015, 2014 and 2013 comprised the 52-week periods ended on December 27, 2015, December 28, 2014 and December 29, 2013, respectively. For convenience of presentation, all fiscal years are referred to as beginning as of January 1, and ending as of December 31, but actually reflect our financial position and results of operations for the periods described above.

The consolidated financial statements include the accounts of the company and its wholly owned subsidiaries. All intercompany transactions are eliminated in consolidation. The equity method of accounting is used for investments in non-controlled affiliates in which the company's ownership ranges from 20 to 50 percent, or in instances in which the company is able to exercise significant influence but not control (such as representation on the investee's Board of Directors.)

Use of Estimates, Policy [Policy Text Block]

We have made a number of estimates and assumptions related to the reporting of assets, liabilities, revenues and expenses to prepare these financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP") as delineated by the Financial Accounting Standards Board ("FASB") in its Accounting Standards Codification ("ASC"). Generally, assets and liabilities that are subject to estimation and judgment include the allowance for doubtful accounts, inventory valuation, amortization of preproduction costs, impairment of and the estimated useful lives of our long-lived assets, self-insurance portions of employee benefits, workers' compensation and general liability programs, fair value of stock-based compensation, income tax liabilities and deferred income taxes. While actual results could differ, we believe such estimates to be reasonable.

Cash and Cash Equivalents, Policy [Policy Text Block]

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 December 31, 2015 and 2014, certificates of deposit totaling $1.0 million and $3.8 million, respectively, were restricted in use and were classified as short-term investments on our consolidated balance sheet.

Cash and cash equivalents generally consist of cash, certificates of deposit and fixed deposits and money market funds with original maturities of three months or less. Our cash and cash equivalents are not subject to significant interest rate risk due to the short maturities of these investments. 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 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 consolidated statements of cash flows. At times throughout the year and at year-end, cash balances held at financial institutions were in excess of federally insured limits.

Trade and Other Accounts Receivable, Policy [Policy Text Block]

Accounts Receivable

We maintain an allowance for doubtful accounts receivable based upon the expected collectability of all trade receivables.

Inventory, Policy [Policy Text Block]

Inventories, which are categorized as raw materials, work-in-process or finished goods, are stated at the lower of cost or market using the first-in, first-out method.

Property, Plant and Equipment, Policy [Policy Text Block]

Property, plant and equipment are carried at cost, less accumulated depreciation. The cost of additions, improvements and interest during construction, if any, are capitalized. Our maintenance and repair costs are charged to expense when incurred. Depreciation is calculated generally on the straight-line method based on the estimated useful lives of the assets.

Classification	Expected Useful Life
Computer equipment	3 to 5 years
Production machinery and equipment	7 to 10 years
Buildings	25 years

When property, plant and equipment is replaced, retired or disposed of, the cost and related accumulated depreciation are removed from the accounts. Property, plant and equipment no longer used in operations, which are generally insignificant in amount, are stated at the lower of cost or estimated net realizable value. Gains and losses, if any, are recorded as a component of operating income if the disposition relates to an operating asset. If a non-operating asset is disposed of, any gains and losses are recorded in other income or expense in the period of disposition or write down.

Amortization Policy, Pre-production Costs [Policy Text Block]

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.

Revenue Recognition, Deferred Revenue [Policy Text Block]

Also, we defer any reimbursements made to us by our customer and recognize the tooling reimbursement revenue over the same period in which the tooling is in use.

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

When facts and circumstances indicate that there may have been a loss in value, management will also evaluate its cost method investments to determine whether there was an other-than-temporary impairment. If a loss in the value of the investment is determined to be other than temporary, then the decline in value is recognized as a loss.

In accordance with the Property, Plant and Equipment Topic of the ASC, management evaluates the recoverability and estimated remaining lives of long-lived assets. The company reviews long-lived assets for impairment whenever facts and circumstances suggest that the carrying value of the assets may not be recoverable or the useful life has changed.

Foreign Currency Transactions and Translations Policy [Policy Text Block]

When our foreign subsidiaries translate their financial statements from the functional currency to the reporting currency, the balance sheet accounts are translated using the exchange rates in effect at the end of the accounting period and retained earnings is translated using historical rates. The income statement accounts are generally translated at the weighted average of exchange rates during the period and the cumulative effect of translation is recorded as a separate component of accumulated other comprehensive income (loss) in shareholders' equity

Any gains and losses recorded as a result of the remeasurement of monetary assets and liabilities into the functional currency are reflected as transaction gains and losses and included in other income (expense) in the consolidated income statements.

Revenue Recognition, Sales of Goods [Policy Text Block]

Sales of products and any related costs are recognized when title and risk of loss transfers to the purchaser, generally upon shipment. Tooling reimbursement revenues related to initial tooling reimbursed by our customers are deferred and recognized over the expected life of the wheel program on a straight line basis, as discussed above.

Research and Development Expense, Policy [Policy Text Block]

Research and development costs (primarily engineering and related costs) are expensed as incurred and are included in cost of sales in the consolidated income statements.

Value Added Tax, Policy [Policy Text Block]

Value-added taxes that are collected from customers and remitted to taxing authorities are excluded from sales and cost of sales.

Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]

We account for stock-based compensation using the fair value recognition method in accordance with U.S. GAAP. We recognize these compensation costs net of the applicable forfeiture rate and recognize the compensation costs for only those shares expected to vest on a straight-line basis over the requisite service period of the award, which is generally the vesting term of three to four years. We estimate the forfeiture rate based on our historical experience.

Income Tax, Policy [Policy Text Block]

We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and financial reporting basis of our assets and liabilities. We calculate current and deferred tax provisions based on estimates and assumptions that could differ from actual results reflected on the income tax returns filed during the following years. Adjustments based on filed returns are recorded when identified in the subsequent years.

The effect on deferred taxes for a change in tax rates is recognized in income in the period that the tax rate change is enacted. In assessing the realizability of deferred tax assets, we consider whether it is more likely than not that some portion of the deferred tax assets will not be realized. A valuation allowance is provided for deferred income tax assets when, in our judgment, based upon currently available information and other factors, it is more likely than not that all or a portion of such deferred income tax assets will not be realized. The determination of the need for a valuation allowance is based on an on-going evaluation of current information including, among other things, historical operating results, estimates of future earnings in different taxing jurisdictions and the expected timing of the reversals of temporary differences. We believe that the determination to record a valuation allowance to reduce a deferred income tax asset is a significant accounting estimate because it is based, among other things, on an estimate of future taxable income in the United States and certain other jurisdictions, which is susceptible to change and may or may not occur, and because the impact of adjusting a valuation allowance may be material.

In determining when to release the valuation allowance established against our net deferred income tax assets, we consider all available evidence, both positive and negative.  Consistent with our policy, the valuation allowance against our net deferred income tax assets will not be reversed until such time as we have generated three years of cumulative pre-tax income and have reached sustained profitability, which we define as two consecutive one year periods of pre-tax income.

We account for uncertain tax positions utilizing a two-step approach to evaluate tax positions. Step one, recognition, requires evaluation of the tax position to determine if based solely on technical merits it is more likely than not to be sustained upon examination. Step two, measurement, is addressed only if a position is more likely than not to be sustained. In step two, the tax benefit is measured as the largest amount of benefit, determined on a cumulative probability basis, which is more likely than not to be realized upon ultimate settlement with tax authorities. If a position does not meet the more likely than not threshold for recognition in step one, no benefit is recorded until the first subsequent period in which the more likely than not standard is met, the issue is resolved with the taxing authority, or the statute of limitations expires. Positions previously recognized are derecognized when we subsequently determine the position no longer is more likely than not to be sustained.

We are a multinational company subject to taxation in many jurisdictions. We record liabilities dealing with uncertainty in the application of complex tax laws and regulations in the various taxing jurisdictions in which we operate. If we determine that payment of these liabilities will be unnecessary, we reverse the liability and recognize the tax benefit during the period in which we determine the liability no longer applies. Conversely, we record additional tax liabilities or valuation allowances in a period in which we determine that a recorded liability is less than we expect the ultimate assessment to be or that a tax asset is impaired.

Income taxes are accounted for pursuant to U.S. GAAP, which requires the use of the liability method and the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of assets and liabilities. The effect on deferred taxes for a change in tax rates is recognized in the provision for income taxes in the period of enactment. U.S. income taxes on undistributed earnings of our international subsidiaries have not been provided as such earnings are considered permanently reinvested. Tax credits and special deductions are accounted for as a reduction of the provision for income taxes in the period in which the credits arise.

The determination of whether or not to record a full or partial valuation allowance on our deferred tax assets is a critical accounting estimate requiring a significant amount of judgment on the part of management. In determining when to release the valuation allowance established against our deferred income tax assets, we consider all available evidence, both positive and negative. We perform our analysis on a jurisdiction by jurisdiction basis at the end of each reporting period.

Our policy regarding interest and penalties related to uncertain tax positions is to record interest and penalties as an element of income tax expense.  The cumulative amounts related to interest and penalties are added to the total liabilities for unrecognized tax positions on the balance sheet.

Earnings Per Share, Policy [Policy Text Block]

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 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.

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements

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.