CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (USD $)
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3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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Statement of Stockholders' Equity [Abstract] | ||||
Dividends declared, per share (in dollars per share) | $ 0.47 | $ 0.47 | $ 0.94 | $ 1.19 |