| Date | Acquired | Amount |
|---|---|---|
| Jan 10, 2017 |
|
Undisclosed amount |
| Dec 07, 2016 |
|
$ 23,000,000 |
| May 18, 2016 |
|
Undisclosed amount |
| Mar 05, 2015 |
|
$ 17,800,000 |
| Jan 01, 2013 |
|
Undisclosed amount |
