| Date | Acquired | Amount |
|---|---|---|
| Aug 01, 2017 |
|
Undisclosed amount |
| Oct 08, 2015 |
|
$ 110,000,000 |
| Jun 04, 2015 |
|
$ 6,000,000 |
| Sep 04, 2014 |
|
$ 15,000,000 |
| May 06, 2014 |
|
Undisclosed amount |
| Jan 09, 2012 |
|
Undisclosed amount |
| Jul 20, 2011 |
|
Undisclosed amount |
