Earnings Per Common Share Schedule of Antidilutive Shares Excluded from the Computation of Diluted Earnings Per Share (Details)
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12 Months Ended | |||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||||||
Total | 2,302,322 | 3,113,568 | 2,057,548 | |||||
Stock options, performance and restricted shares [Member]
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Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||||||
Total | 337,145 | 224,918 | 161,786 | |||||
Assumed conversion of exchangeable note hedges [Member]
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Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||||||
Total | 1,965,177 | [1] | 2,888,650 | [1] | 1,895,762 | [1] | ||
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