| Filing Date | Type | Description | Filing Group | View |
| 05/16/13 | ARS | An annual report to security holders | Annual Filings |  |
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| 04/30/13 | 10-K/A | Amendment to a previously filed 10-K | Annual Filings | |
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| 02/22/13 | 10-K | Annual report which provides a comprehensive overview of the company for the past year | Annual Filings | |
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| 04/16/12 | ARS | An annual report to security holders | Annual Filings | |
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| 02/21/12 | 10-K | Annual report which provides a comprehensive overview of the company for the past year | Annual Filings | |
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| 04/18/11 | ARS | An annual report to security holders | Annual Filings | |
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| 02/11/11 | 10-K | Annual report which provides a comprehensive overview of the company for the past year | Annual Filings | |
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| 04/13/10 | ARS | An annual report to security holders | Annual Filings | |
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| 02/16/10 | 10-K | Annual report which provides a comprehensive overview of the company for the past year | Annual Filings | |
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| 04/13/09 | ARS | An annual report to security holders | Annual Filings | |
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