| Date | Acquired | Amount |
|---|---|---|
| Apr 26, 2016 |
|
$ 25,000,000 |
| Nov 02, 2015 |
|
$ 414,000,000 |
| Jan 14, 2014 |
|
Undisclosed amount |
| Jul 08, 2008 |
|
Undisclosed amount |
