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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Trade accounts receivable, allowance for doubtful accounts (in dollars)	$ 13,381	$ 9,376
Common shares, par value (in dollars per share)	$ 0.10	$ 0.10
Common shares, shares authorized	50,000,000	50,000,000
Common shares, shares issued	19,279,466	18,465,444
Common shares, shares outstanding	19,279,466	18,465,444

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

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