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Quarterly report pursuant to Section 13 or 15(d)

Stock Compensation Plans (Narrative) (Details)

v2.4.0.6
Stock Compensation Plans (Narrative) (Details)
3 Months Ended
Mar. 31, 2012
ICE Plan [Member]
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Performance shares granted 312,540
Restricted shares granted 114,070
Number of shares granted under the plan 426,610
Lower Limit [Member] | 2010 to 2012 Performance Period [Member]
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Minimum payout ratio 0.00%
Lower Limit [Member] | 2011 To 2013 And The 2012 to 2014 Performance Periods [Member]
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Minimum payout ratio 0.00%
Upper Limit [Member] | 2010 to 2012 Performance Period [Member]
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Maximum payout ratio 150.00%
Upper Limit [Member] | 2011 To 2013 And The 2012 to 2014 Performance Periods [Member]
Ìý
Maximum payout ratio 200.00%