| Date | Acquired | Amount |
|---|---|---|
| Aug 01, 2017 |
|
Undisclosed amount |
| Jul 25, 2017 |
|
Undisclosed amount |
| May 15, 2017 |
|
$ 35,000,000 |
| Mar 21, 2017 |
|
Undisclosed amount |
| Nov 01, 2016 |
|
Undisclosed amount |
| Apr 19, 2016 |
|
Undisclosed amount |
| Feb 06, 2015 |
|
Undisclosed amount |
| Jul 18, 2013 |
|
Undisclosed amount |
| Sep 28, 2011 |
|
Undisclosed amount |
| May 09, 2008 |
|
Undisclosed amount |
| Jun 05, 2003 |
|
Undisclosed amount |
