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EQUIPMENT AND PROPERTY (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| EQUIPMENT AND PROPERTY | |||
| Net equipment and property | $ 82,263,000 | $ 76,858,000 | |
| Equipment and property, net held in foreign countries | 2,300,000 | 2,600,000 | |
| Depreciation expense | 15,212,000 | 15,112,000 | 15,975,000 |
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Plant and Equipment
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| EQUIPMENT AND PROPERTY | |||
| Gross equipment and property | 191,918,000 | 178,858,000 | |
| Less--Accumulated Depreciation | (134,368,000) | (125,667,000) | |
| Net equipment and property | 57,550,000 | 53,191,000 | |
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Buildings
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| EQUIPMENT AND PROPERTY | |||
| Gross equipment and property | 45,527,000 | 43,842,000 | |
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Operating Equipment
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| EQUIPMENT AND PROPERTY | |||
| Gross equipment and property | 79,411,000 | 70,932,000 | |
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Furniture and Fixtures
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| EQUIPMENT AND PROPERTY | |||
| Gross equipment and property | 12,479,000 | 11,809,000 | |
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Computer Equipment and Systems
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| EQUIPMENT AND PROPERTY | |||
| Gross equipment and property | 54,501,000 | 52,275,000 | |
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Land
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| EQUIPMENT AND PROPERTY | |||
| Gross equipment and property | $ 24,713,000 | $ 23,667,000 | |
| X | ||||||||||
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- Definition
The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in foreign countries in total in which the entity holds assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Gross amount of long-lived 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, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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