Property Plant and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 84,776	$ 82,427
Accumulated depreciation	(52,438)	(46,472)
Net property, plant and equipment	32,338	35,955
Land, Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	38,955	37,206
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 45,821	$ 45,221

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.

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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.

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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.

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