| Date | Acquired | Amount |
|---|---|---|
| Jun 27, 2017 |
|
Undisclosed amount |
| Jan 15, 2015 |
|
$ 32,000,000 |
| Jan 15, 2015 |
|
$ 33,000,000 |
| Mar 03, 2014 |
|
Undisclosed amount |
| Sep 23, 2009 |
|
Undisclosed amount |
