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Other Long-Term Liabilities	12 Months Ended
Other Long-Term Liabilities	Dec. 31, 2011
Other Long-Term Liabilities [Abstract]
Other Long-Term Liabilities	Note 9. Other Long-Term Liabilities As discussed in Note 8, other long-term liabilities include $839 and $805 at December 31, 2011 and 2010, respectively, for an asset retirement obligation on certain equipment. Other long-term liabilities also include $0 and $551 at December 31, 2011 and 2010, respectively, for estimated environmental remediation costs related to land that was acquired as part of a previous acquisition. The Company sold this property in 2011 which resulted in the reversal of the estimated remediation costs liability and corresponding increase to operating income of $547. No amounts were recorded in the consolidated statement of operations in 2010 related to this environmental liability.