XML 45 R35.htm IDEA: XBRL DOCUMENT v2.4.0.6
Equity-Based Compensation (Details 3) (USD $)
9 Months Ended
Sep. 30, 2012
$ 7.70 - 11.11 [Member]
 
Summarizes information about stock options  
Number Outstanding And Exercisable 347,700
Weighted Average Remaining Contractual Life (Years) 1 year 4 months 17 days
Weighted Average Exercise Price $ 10.03
$ 7.70 - 11.11 [Member] | Maximum [Member]
 
Summarizes information about stock options  
Range of Exercise Prices, Upper Range Limit $ 11.11
$ 7.70 - 11.11 [Member] | Minimum [Member]
 
Summarizes information about stock options  
Range of Exercise Prices, Lower Range Limit $ 7.70
$ 13.68 - 16.24 [Member]
 
Summarizes information about stock options  
Number Outstanding And Exercisable 92,800
Weighted Average Remaining Contractual Life (Years) 3 years 15 days
Weighted Average Exercise Price $ 13.95
$ 13.68 - 16.24 [Member] | Maximum [Member]
 
Summarizes information about stock options  
Range of Exercise Prices, Upper Range Limit $ 16.24
$ 13.68 - 16.24 [Member] | Minimum [Member]
 
Summarizes information about stock options  
Range of Exercise Prices, Lower Range Limit $ 13.68