| Date | Acquired | Amount |
|---|---|---|
| Nov 08, 2017 |
|
Undisclosed amount |
| Aug 24, 2017 |
|
Undisclosed amount |
| Aug 23, 2017 |
|
Undisclosed amount |
| Jul 05, 2017 |
|
Undisclosed amount |
| May 24, 2017 |
|
Undisclosed amount |
| Mar 14, 2017 |
|
Undisclosed amount |
| Nov 03, 2016 |
|
Undisclosed amount |
| Jun 07, 2016 |
|
Undisclosed amount |
| Dec 18, 2015 |
|
Undisclosed amount |
| Nov 12, 2015 |
|
Undisclosed amount |
| Sep 24, 2015 |
|
$ 75,000,000 |
| Aug 23, 2010 |
|
Undisclosed amount |
