Property, Plant and Equipment - Schedule of Property,Plant and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Property Plant And Equipment [Line Items] | ||
Cost | $ 149,572us-gaap_PropertyPlantAndEquipmentGross | $ 143,374us-gaap_PropertyPlantAndEquipmentGross |
Accumulated depreciation | (101,023)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | (89,002)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment |
Total | 48,549us-gaap_PropertyPlantAndEquipmentNet | 54,372us-gaap_PropertyPlantAndEquipmentNet |
Buildings [Member] | ||
Property Plant And Equipment [Line Items] | ||
Cost | 3,683us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_BuildingMember |
4,075us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_BuildingMember |
Plant equipment and instrumentation [Member] | ||
Property Plant And Equipment [Line Items] | ||
Cost | 140,110us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_PropertyPlantAndEquipmentMember |
133,427us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_PropertyPlantAndEquipmentMember |
Furniture and fixtures [Member] | ||
Property Plant And Equipment [Line Items] | ||
Cost | $ 5,779us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_FurnitureAndFixturesMember |
$ 5,872us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_FurnitureAndFixturesMember |
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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