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Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Accounts receivable, net of allowance $ 3,687 $ 3,623
Property, plant and equipment, net of accumulated depreciation 130,886 83,481
Other intangible assets, net of accumulated amortization $ 6,701 $ 4,336