| Filing Date | Type | Description | Filing Group | View |
| 03/22/13 | DFAN14A | Additional proxy soliciting materials filed by non-management | Proxy Filings |  |
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| 03/15/13 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | Proxy Filings | |
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| 02/20/13 | DFAN14A | Additional proxy soliciting materials filed by non-management | Proxy Filings | |
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| 02/20/13 | DFAN14A | Additional proxy soliciting materials filed by non-management | Proxy Filings | |
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| 02/19/13 | DFAN14A | Additional proxy soliciting materials filed by non-management | Proxy Filings | |
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| 02/19/13 | DFAN14A | Additional proxy soliciting materials filed by non-management | Proxy Filings | |
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| 03/15/12 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | Proxy Filings | |
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| 03/17/11 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | Proxy Filings | |
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| 03/18/10 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | Proxy Filings | |
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| 03/19/09 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | Proxy Filings | |
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