XML 46 R59.htm IDEA: XBRL DOCUMENT v2.4.0.6
Equity-Based Compensation Plans (Details 4) (Restricted Stock [Member], USD $)
3 Months Ended
Mar. 31, 2013
Restricted Stock [Member]
 
Summary of restricted Stock activity  
Number of Shares, Beginning balance 364,650
Weighted Average Exercise Price, Beginning balance $ 25.25
Number of Restricted Shares, Granted 335,100
Weighted Average Exercise Price, Granted $ 11.48
Number of Restricted Shares, Exercised (32,800)
Weighted Average Exercise Price, Exercised $ 25.75
Number of Restricted Shares, Cancelled (800)
Weighted Average Exercise Price, Cancelled $ 27.00
Number of Share Units, Ending balance 666,150
Weighted Average Exercise Price, Ending balance $ 18.30
Aggregate Intrinsic Value, Ending Balance $ 7,207,743