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Quarterly report pursuant to Section 13 or 15(d)

STOCK COMPENSATION PLANS (Detail)

v2.4.0.6
STOCK COMPENSATION PLANS (Detail) (USD $)
9 Months Ended
Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Grant Date Market Price (in usd per share) $ 63.62
Average Expected Term (Years) 2 years 9 months 18 days
Expected Volatility 56.00%
Risk-Free Interest Rate 0.45%
Dividend Yield 3.93%
Fair Value (in usd per share) $ 77.78
Fair Value (Percent of Grant Date Market Price) 122.26%
Ice Plan [Member]
Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Number of shares granted under the award (in shares) 426,610
Performance shares granted (in shares) 312,540
Restricted shares granted (in shares) 114,070
2010 to 2012 Performance Period [Member] | Minimum [Member]
Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Minimum payout ratio 0.00%
2010 to 2012 Performance Period [Member] | Maximum [Member]
Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Minimum payout ratio 150.00%
2011 To 2013 And The 2012 to 2014 Performance Periods [Member] | Minimum [Member]
Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Minimum payout ratio 0.00%
2011 To 2013 And The 2012 to 2014 Performance Periods [Member] | Maximum [Member]
Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Minimum payout ratio 200.00%
2012 Equity Plan [Member]
Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý
Maximum number of shares that may be issued (in shares) 6,000,000
Number of shares granted under the plan (in shares) 22,575