| Date | Acquired | Amount |
|---|---|---|
| Aug 15, 2017 |
|
$ 107,000,000 |
| Jun 02, 2017 |
|
Undisclosed amount |
| May 19, 2017 |
|
$ 14,000,000 |
| Dec 23, 2016 |
|
$ 52,700,000 |
| Apr 29, 2016 |
|
$ 10,400,000 |
| Nov 30, 2015 |
|
Undisclosed amount |
| Nov 21, 2014 |
|
$ 29,700,000 |
| Dec 23, 2013 |
|
Undisclosed amount |
| May 02, 2013 |
|
Undisclosed amount |
| Nov 14, 2012 |
|
$ 16,600,000 |
| Jun 15, 2012 |
|
Undisclosed amount |
| Nov 02, 2011 |
|
Undisclosed amount |
| Jun 16, 2010 |
|
Undisclosed amount |
| Apr 20, 2010 |
|
Undisclosed amount |
| Dec 06, 2006 |
|
Undisclosed amount |
