CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 237,375	$ 191,884
Accounts receivable, less allowance for doubtful accounts of $476 and $1,655	94,876us-gaap_AccountsReceivableNetCurrent	85,126us-gaap_AccountsReceivableNetCurrent
Accounts receivable from joint ventures	1,760us-gaap_DueFromJointVenturesCurrent	1,897us-gaap_DueFromJointVenturesCurrent
Accounts receivable, other	1,823us-gaap_NontradeReceivablesCurrent	2,638us-gaap_NontradeReceivablesCurrent
Taxes receivable	606us-gaap_IncomeTaxesReceivable	1,578us-gaap_IncomeTaxesReceivable
Inventories	68,628us-gaap_InventoryNet	66,889us-gaap_InventoryNet
Prepaid income taxes	4,586us-gaap_PrepaidTaxes	5,519us-gaap_PrepaidTaxes
Deferred income taxes	8,527us-gaap_DeferredTaxAssetsNetCurrent	7,271us-gaap_DeferredTaxAssetsNetCurrent
Asbestos-related insurance receivables	6,827	7,542
Other current assets	7,046us-gaap_OtherAssetsCurrent	7,363us-gaap_OtherAssetsCurrent
Total current assets	432,054us-gaap_AssetsCurrent	377,707us-gaap_AssetsCurrent
Property, plant and equipment, net of accumulated depreciation	150,420us-gaap_PropertyPlantAndEquipmentNet	146,931us-gaap_PropertyPlantAndEquipmentNet
Investments in unconsolidated joint ventures	17,214us-gaap_EquityMethodInvestments	18,463us-gaap_EquityMethodInvestments
Deferred income taxes	44,853us-gaap_DeferredTaxAssetsNetNoncurrent	44,854us-gaap_DeferredTaxAssetsNetNoncurrent
Pension asset	403	2,982
Goodwill	98,227us-gaap_Goodwill	108,671us-gaap_Goodwill
Other intangible assets	38,340	49,171
Asbestos-related insurance receivables	46,186	49,508
Investments, other	341us-gaap_OtherLongTermInvestments	507us-gaap_OtherLongTermInvestments
Other long-term assets	7,079us-gaap_OtherAssetsNoncurrent	7,740us-gaap_OtherAssetsNoncurrent
Total assets	835,117us-gaap_Assets	806,534us-gaap_Assets
Current liabilities
Accounts payable	20,020us-gaap_AccountsPayableCurrent	17,534us-gaap_AccountsPayableCurrent
Accrued employee benefits and compensation	33,983us-gaap_AccruedEmployeeBenefitsCurrent	29,724us-gaap_AccruedEmployeeBenefitsCurrent
Accrued income taxes payable	6,103us-gaap_AccruedIncomeTaxesCurrent	4,078us-gaap_AccruedIncomeTaxesCurrent
Current portion of lease obligation	747us-gaap_CapitalLeaseObligationsCurrent	849us-gaap_CapitalLeaseObligationsCurrent
Current portion of long term debt	35,000us-gaap_LongTermDebtCurrent	17,500us-gaap_LongTermDebtCurrent
Asbestos-related liabilities	6,827rog_AsbestosLiabilityCurrent	7,542rog_AsbestosLiabilityCurrent
Other accrued liabilities	17,765us-gaap_OtherLiabilitiesCurrent	12,813us-gaap_OtherLiabilitiesCurrent
Total current liabilities	120,445us-gaap_LiabilitiesCurrent	90,040us-gaap_LiabilitiesCurrent
Long term debt	25,000us-gaap_LongTermDebtNoncurrent	60,000us-gaap_LongTermDebtNoncurrent
Long term lease obligation	6,042	7,170
Pension liability	17,652	5,435
Retiree health care and life insurance benefits	8,768	9,649
Asbestos-related liabilities	49,718rog_AsbestosLiabilityNoncurrent	52,205rog_AsbestosLiabilityNoncurrent
Non-current income tax	10,544us-gaap_AccruedIncomeTaxesNoncurrent	10,208us-gaap_AccruedIncomeTaxesNoncurrent
Deferred income taxes	14,647	16,077
Other long-term liabilities	338us-gaap_OtherLiabilitiesNoncurrent	223us-gaap_OtherLiabilitiesNoncurrent
Shareholders’ Equity
Capital Stock - $1 par value; 50,000,000 authorized shares; 18,403,109 and 17,854,506 shares outstanding	18,404us-gaap_CommonStockValue	17,855us-gaap_CommonStockValue
Additional paid-in capital	137,225	110,577
Retained earnings	491,428	438,545
Accumulated other comprehensive income (loss)	(65,094)	(11,450)
Total shareholders' equity	581,963us-gaap_StockholdersEquity	555,527us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	$ 835,117	$ 806,534

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The current portion of amounts receivable from insurance carriers to cover asbestos related liabilities.

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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, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. 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 amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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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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