v2.4.0.6
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Summary of income tax expenses      
Federal $ 14,609 $ 15,098 $ 11,268
State 1,041 986 662
Deferred (6,085) 9,980 (4,801)
Total Income Tax Expense $ 9,565 $ 26,064 $ 7,129