Property, Plant and Equipment (Schedule of Plant Property and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Abstract]
Land	$ 14,045us-gaap_Land	$ 14,986us-gaap_Land
Buildings and improvements	132,105us-gaap_BuildingsAndImprovementsGross	136,959us-gaap_BuildingsAndImprovementsGross
Machinery and equipment	165,979us-gaap_MachineryAndEquipmentGross	160,843us-gaap_MachineryAndEquipmentGross
Office equipment	36,810us-gaap_FurnitureAndFixturesGross	34,972us-gaap_FurnitureAndFixturesGross
Equipment in process	26,573rog_EquipmentInProcess	21,360rog_EquipmentInProcess
Property, Plant and Equipment, Gross	375,512us-gaap_PropertyPlantAndEquipmentGross	369,120us-gaap_PropertyPlantAndEquipmentGross
Accumulated depreciation	(225,092)	(222,189)
Total property, plant and equipment, net	$ 150,420us-gaap_PropertyPlantAndEquipmentNet	$ 146,931us-gaap_PropertyPlantAndEquipmentNet

Equipment in process

No definition available.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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- Definition

Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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- Definition

Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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