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Stock Repurchase Plan	12 Months Ended
Stock Repurchase Plan	Dec. 31, 2012
Stock Repurchase Plan	16. Stock Repurchase Plan On June 18, 2012, the Company’s Board of Directors approved a stock repurchase plan of up to $100 million of the Company’s common stock. As of December 31, 2012, no shares of common stock had been repurchased. The repurchase plan has no expiration date and all shares purchased are expected to be cancelled.