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Shareholders' Equity (Details) (USD $)
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3 Months Ended | |
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Mar. 31, 2014
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Mar. 31, 2013
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| Shareholders' Equity [Line Items] | ||
| Dividends per share (in dollars per share) | $ 0.12 | $ 0.10 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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