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Consolidated Statement of Stockholders' Equity (Parenthetical) (USD $)
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6 Months Ended |
|---|---|
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Jun. 30, 2014
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| Statement of Stockholders' Equity [Abstract] | |
| Dividends to shareholders (USD per share) | $ 0.54 |
| Treasury stock, shares acquired | 1,140 |
| Treasury stock, shares sold | 288 |