| Date | Acquired | Amount |
|---|---|---|
| Aug 30, 2017 |
|
$ 175,000,000 |
| Sep 01, 2016 |
|
£ 90,000,000 |
| Mar 31, 2016 |
|
Undisclosed amount |
| Feb 03, 2016 |
|
Undisclosed amount |
| Jan 06, 2016 |
|
Undisclosed amount |
| Jun 11, 2015 |
|
Undisclosed amount |
| Sep 25, 2014 |
|
$ 290,000,000 |
| Dec 03, 2013 |
|
Undisclosed amount |
| Oct 20, 2011 |
|
Undisclosed amount |
