| Date Filed | Type | Description |
| 03/30/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/28/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 04/02/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/31/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/28/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/31/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/31/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/29/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/30/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 06/14/2010 |
10-K
| Annual Report for the period ended March 31, 2010 |
| 06/08/2009 |
10-K
| Annual Report for the period ended March 31, 2009 |
| 06/29/2004 |
10-K/A
| Annual Report for the period ended March 31, 2003 [amend] |
| 06/29/2004 |
10-K
| Annual Report for the period ended March 31, 2004 |
| 06/27/2003 |
10-K
| Annual Report for the period ended March 31, 2003 |
| 07/01/2002 |
10-K
| Annual Report for the period ended March 31, 2002 |
| 06/25/2001 |
10-K
| Annual Report for the period ended March 31, 2001 |
| 06/29/2000 |
10-K
| Annual Report for the period ended March 31, 2000 |
| 06/24/1999 |
10-K
| Annual Report for the period ended March 31, 1999 |
| 06/29/1998 |
10-K
| Annual Report for the period ended March 31, 1998 |
| 04/14/1998 |
10-K/A
| Annual Report for the period ended March 31, 1997 [amend] |
| 03/18/1998 |
10-K/A
| Annual Report for the period ended March 31, 1997 [amend] |
| 07/29/1997 |
10-K/A
| Annual Report for the period ended March 31, 1997 [amend] |
| 06/30/1997 |
10-K
| Annual Report for the period ended March 31, 1997 |
| 07/25/1996 |
10-K/A
| Annual Report for the period ended March 31, 1996 [amend] |
| 07/01/1996 |
10-K
| Annual Report for the period ended March 31, 1996 |