Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 179,802	$ 222,666
Accounts receivable, net	158,237us-gaap_AccountsReceivableNetCurrent	163,547us-gaap_AccountsReceivableNetCurrent
Inventories	107,274us-gaap_InventoryNet	112,739us-gaap_InventoryNet
Deferred income taxes	6,743	12,905
Prepaid expenses and other current assets	8,074	9,659
Total current assets	460,130us-gaap_AssetsCurrent	521,516us-gaap_AssetsCurrent
Property, plant and equipment, net	395,113us-gaap_PropertyPlantAndEquipmentNet	418,830us-gaap_PropertyPlantAndEquipmentNet
Intangibles	385	616
Goodwill	71,680us-gaap_Goodwill	78,890us-gaap_Goodwill
Income taxes receivable and deferred	69,540	79,849
Other assets	32,456us-gaap_OtherAssetsNoncurrent	26,456us-gaap_OtherAssetsNoncurrent
Total assets	1,029,304us-gaap_Assets	1,126,157us-gaap_Assets
Current liabilities:
Notes and loans payable	661us-gaap_NotesAndLoansPayableCurrent	625us-gaap_NotesAndLoansPayableCurrent
Accounts payable	34,787us-gaap_AccountsPayableCurrent	36,397us-gaap_AccountsPayableCurrent
Accrued liabilities	95,149us-gaap_AccruedLiabilitiesCurrent	112,331us-gaap_AccruedLiabilitiesCurrent
Current maturities of long-term debt	50,015us-gaap_LongTermDebtCurrent	3,764us-gaap_LongTermDebtCurrent
Income taxes payable and deferred	2,786ain_IncomeTaxesPayableAndDeferred	4,429ain_IncomeTaxesPayableAndDeferred
Total current liabilities	183,398us-gaap_LiabilitiesCurrent	157,546us-gaap_LiabilitiesCurrent
Long-term debt	222,096us-gaap_LongTermDebtNoncurrent	300,111us-gaap_LongTermDebtNoncurrent
Other noncurrent liabilities	103,079us-gaap_OtherLiabilitiesNoncurrent	106,014us-gaap_OtherLiabilitiesNoncurrent
Deferred taxes and other credits	7,163	14,707
Total liabilities	515,736us-gaap_Liabilities	578,378us-gaap_Liabilities
Commitments and Contingencies
Shareholders' Equity
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued
Additional paid-in capital	418,972us-gaap_AdditionalPaidInCapital	416,728us-gaap_AdditionalPaidInCapital
Retained earnings	456,105	434,598
Accumulated items of other comprehensive income:
Translation adjustments	(55,240)	(138)
Pension and postretirement liability adjustments	(51,666)	(48,383)
Derivative valuation adjustment	(861)	(977)
Treasury stock (Class A), at cost; 8,459,498 shares in 2014 and 8,463,635 shares in 2013	(257,481)us-gaap_TreasuryStockValue	(257,571)us-gaap_TreasuryStockValue
Total Company shareholders' equity	509,869us-gaap_StockholdersEquity	544,297us-gaap_StockholdersEquity
Noncontrolling interest	3,699us-gaap_MinorityInterest	3,482us-gaap_MinorityInterest
Total Equity	513,568	547,779
Total liabilities and shareholders' equity	1,029,304	1,126,157
Common Class A [Member]
Shareholders' Equity
Common Stock	37	37
Common Class B [Member]
Shareholders' Equity
Common Stock	$ 3	$ 3

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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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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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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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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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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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