CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 170,838	$ 179,802
Accounts receivable, net	163,409us-gaap_AccountsReceivableNetCurrent	158,237us-gaap_AccountsReceivableNetCurrent
Inventories	104,820us-gaap_InventoryNet	107,274us-gaap_InventoryNet
Deferred income taxes	6,576	6,743
Prepaid expenses and other current assets	10,412	8,074
Total current assets	456,055us-gaap_AssetsCurrent	460,130us-gaap_AssetsCurrent
Property, plant and equipment, net	380,864us-gaap_PropertyPlantAndEquipmentNet	395,113us-gaap_PropertyPlantAndEquipmentNet
Intangibles	328	385
Goodwill	65,724us-gaap_Goodwill	71,680us-gaap_Goodwill
Income taxes receivable and deferred	65,732	69,540
Other assets	32,916us-gaap_OtherAssetsNoncurrent	32,456us-gaap_OtherAssetsNoncurrent
Total assets	1,001,619us-gaap_Assets	1,029,304us-gaap_Assets
LIABILITIES AND SHAREHOLDERS' EQUITY
Notes and loans payable	496us-gaap_NotesAndLoansPayableCurrent	661us-gaap_NotesAndLoansPayableCurrent
Accounts payable	36,361us-gaap_AccountsPayableCurrent	34,787us-gaap_AccountsPayableCurrent
Accrued liabilities	88,987us-gaap_AccruedLiabilitiesCurrent	95,149us-gaap_AccruedLiabilitiesCurrent
Current maturities of long-term debt	50,015us-gaap_LongTermDebtCurrent	50,015us-gaap_LongTermDebtCurrent
Income taxes payable and deferred	1,810ain_IncomeTaxesPayableAndDeferred	2,786ain_IncomeTaxesPayableAndDeferred
Total current liabilities	177,669us-gaap_LiabilitiesCurrent	183,398us-gaap_LiabilitiesCurrent
Long-term debt	232,092us-gaap_LongTermDebtNoncurrent	222,096us-gaap_LongTermDebtNoncurrent
Other noncurrent liabilities	98,496us-gaap_OtherLiabilitiesNoncurrent	103,079us-gaap_OtherLiabilitiesNoncurrent
Deferred taxes and other credits	6,918	7,163
Total liabilities	515,175us-gaap_Liabilities	515,736us-gaap_Liabilities
SHAREHOLDERS' EQUITY
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued
Additional paid-in capital	420,493us-gaap_AdditionalPaidInCapital	418,972us-gaap_AdditionalPaidInCapital
Retained earnings	463,238	456,105
Accumulated items of other comprehensive income:
Translation adjustments	(92,653)	(55,240)
Pension and postretirement liability adjustments	(49,679)	(51,666)
Derivative valuation adjustment	(1,240)	(861)
Treasury stock (Class A), at cost 8,459,498 shares in 2015 and 2014	(257,481)us-gaap_TreasuryStockValue	(257,481)us-gaap_TreasuryStockValue
Total Company shareholders' equity	482,718us-gaap_StockholdersEquity	509,869us-gaap_StockholdersEquity
Noncontrolling interest	3,726us-gaap_MinorityInterest	3,699us-gaap_MinorityInterest
Total equity	486,444	513,568
Total liabilities and shareholders' equity	1,001,619	1,029,304
Common Class A [Member]
SHAREHOLDERS' EQUITY
Common Stock	37	37
Common Class B [Member]
SHAREHOLDERS' EQUITY
Common Stock	$ 3	$ 3

Deferred Income Taxes And OtherT ax Receivable, Noncurrent.

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Income Taxes Payable And Deferred, Current.

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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Amount of deferred tax liability attributable to taxable temporary differences, after deferred tax asset, and other liabilities expected to be paid after one year or operating cycle, if longer.

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No definition available.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and other tax receivables expected to be realized or consumed within one year or operating cycle, if longer.

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No definition available.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.

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Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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