| Date | Acquired | Amount |
|---|---|---|
| Feb 02, 2016 |
|
Undisclosed amount |
| Jan 20, 2016 |
|
$ 200,000,000 |
| May 06, 2014 |
|
$ 70,000,000 |
| Jan 02, 2014 |
|
$ 1,000,000,000 |
