| Date | Acquired | Amount |
|---|---|---|
| Nov 01, 2017 |
|
Undisclosed amount |
| Jan 09, 2017 |
|
$ 27,500,000 |
| Feb 05, 2016 |
|
$ 140,000,000 |
| Dec 17, 2015 |
|
Undisclosed amount |
| Oct 06, 2015 |
|
Undisclosed amount |
| Jun 02, 2014 |
|
Undisclosed amount |
| May 15, 2014 |
|
Undisclosed amount |
| Dec 19, 2012 |
|
$ 57,000,000 |
| May 31, 2012 |
|
Undisclosed amount |
| Apr 04, 2012 |
|
$ 25,000,000 |
| Jul 11, 2011 |
|
Undisclosed amount |
| Mar 09, 2011 |
|
£ 46,600,000 |
| Nov 04, 2010 |
|
Undisclosed amount |
| Feb 08, 2007 |
|
$ 13,900,000 |
| May 29, 2004 |
|
Undisclosed amount |
