| Date | Acquired | Amount |
|---|---|---|
| Sep 19, 2017 |
|
Undisclosed amount |
| Jun 05, 2017 |
|
Undisclosed amount |
| May 24, 2017 |
|
Undisclosed amount |
| Nov 07, 2016 |
|
$ 13,000,000 |
| Jun 24, 2016 |
|
$ 7,500,000 |
| Sep 17, 2014 |
|
$ 14,000,000 |
| Feb 06, 2014 |
|
Undisclosed amount |
| Jan 03, 2012 |
|
Undisclosed amount |
| Jul 06, 2011 |
|
Undisclosed amount |
| Jun 10, 2011 |
|
Undisclosed amount |
| Mar 28, 2011 |
|
Undisclosed amount |
| Dec 24, 2010 |
|
Undisclosed amount |
| Jan 11, 2010 |
|
Undisclosed amount |
