| Date | Acquired | Amount |
|---|---|---|
| May 02, 2017 |
|
$ 33,000,000 |
| Nov 03, 2015 |
|
Undisclosed amount |
| Aug 07, 2014 |
|
Undisclosed amount |
| Dec 31, 2013 |
|
$ 30,000,000 |
| Mar 21, 2013 |
|
Undisclosed amount |
| Oct 12, 2011 |
|
Undisclosed amount |
| Jan 01, 2009 |
|
Undisclosed amount |
