| Date | Acquired | Amount |
|---|---|---|
| May 03, 2017 |
|
Undisclosed amount |
| Sep 02, 2014 |
|
$ 34,700,000 |
| Jul 31, 2013 |
|
$ 47,500,000 |
| Mar 01, 2013 |
|
Undisclosed amount |
| Dec 06, 2011 |
|
Undisclosed amount |
| May 19, 2011 |
|
Undisclosed amount |
| Sep 08, 2009 |
|
$ 32,900,000 |
| Oct 06, 2008 |
|
Undisclosed amount |
