v2.4.0.6
Stock-Based Compensation Plans (Details 2) (Restricted Stock [Member], USD $)
3 Months Ended
Mar. 31, 2013
Restricted Stock [Member]
 
Shares of Restricted Stock, Non-vested at December 31, 2012 42,575
Shares of Restricted Stock, Issued 0
Shares of Restricted Stock, Vested 0
Shares of Restricted Stock, Forfeited 0
Shares of Restricted Stock, Non-vested at March 31, 2013 42,575
Weighted Average Grant Date Fair Value, Non-vested at December 31, 2012 $ 23.87
Weighted Average Grant Date Fair Value, Issued $ 0
Weighted Average Grant Date Fair Value, Vested $ 0
Weighted Average Grant Date Fair Value, Forfeited $ 0
Weighted Average Grant Date Fair Value, Non-vested at March 31, 2013 $ 23.87
Weighted Average Remaining Contractual Term (Years), Non-vested at March 31, 2013 2 years 9 months 18 days
Aggregate Intrinsic Value, Non-vested (in dollars) Non-vested at March 31, 2013 $ 1,044,000 [1]
[1] The aggregate intrinsic value of non-vested restricted stock was calculated using the market value of the Company's stock on on March 28, 2013, the last trading day of the quarter, of $24.51 multiplied by the number of non-vested restricted shares outstanding.