| Date Filed | Type | Description |
| 02/25/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 11/09/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 02/16/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/10/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/10/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/10/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/13/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/13/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 02/17/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 02/17/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 08/13/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 02/18/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 02/19/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 02/15/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/09/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/01/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/01/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |