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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) | 0 Months Ended | 12 Months Ended
--- | --- | ---
May 14, 2012 | May 14, 2010 | Dec. 31, 2012 | Dec. 31, 2010
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY |  |  |  |
Percentage of dividend paid on common stock | 5.00% | 5.00% | 5.00% | 5.00%

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- Definition Represents the percentage of dividend paid on outstanding common shares. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
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