| Date Filed | Type | Description |
| 03/23/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 04/01/2019 |
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 |
| 04/27/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 03/31/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/30/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/27/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/26/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 04/17/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 04/01/2013 |
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 |
| 04/29/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/29/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 01/24/2011 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 04/30/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/31/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 04/30/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/31/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |