v2.3.0.15
Income Taxes (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Dec. 31, 2010
Income Taxes     
Gross liability for unrecognized tax benefits, exclusive of interest and penalties$ 11,025 $ 11,025 $ 5,723
Unrecognized tax benefits that would impact effective tax rate9,826 9,826 4,870
Accrued interest and penalties related to tax positions701 701 689
Effective tax rates33.80%37.80%35.30%37.80% 
Unrecognized tax benefits within the next 12 months$ 554 $ 554