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Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2012
Subsequent Event [Abstract]
Subsequent Event	12. Subsequent Event The Company repurchased and retired 421,620 shares at a cost of $2.5 million from October 1, 2012 through November 6, 2012 under its share repurchase program. In November 2012, the Company’s Board of Directors approved an increase of $10.0 million to the existing $30.5 million share repurchase program initiated in October 2011, bringing the total authorized under the program since inception to $40.5 million. As of November 6, 2012, $16.2 million of the total $40.5 million was available for future share repurchase.