DataTable Render runs too many times

I would expect the "render" function to only run 10 times on init, but it's running 3 times for each instance of the cell.

HTML

<script src="https://code.jquery.com/jquery-1.7.2.min.js"></script>
<script src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css">
<table id="example" class="display" width="100%" cellspacing="0">
  <thead>
    <tr>
      <th>Name</th>
      <th>Position</th>
      <th>Office</th>
      <th>Extn.</th>
      <th>Start date</th>
      <th>Salary</th>
    </tr>
  </thead>
  <tbody></tbody>
</table>

JavaScript

$(document).ready(function() {
		var ExampleData = [{"name": "Tiger Nixon", "position": "System Architect", "salary": "$320,800", "start_date": {"display": "Mon 25th Apr 11", "timestamp": "1303689600"}, "office": "Edinburgh", "extn": "5421"}, {"name": "Garrett Winters", "position": "Accountant", "salary": "$170,750", "start_date": {"display": "Mon 25th Jul 11", "timestamp": "1311552000"}, "office": "Tokyo", "extn": "8422"}, {"name": "Ashton Cox", "position": "Junior Technical Author", "salary": "$86,000", "start_date": {"display": "Mon 12th Jan 09", "timestamp": "1231718400"}, "office": "San Francisco", "extn": "1562"}, {"name": "Cedric Kelly", "position": "Senior Javascript Developer", "salary": "$433,060", "start_date": {"display": "Thu 29th Mar 12", "timestamp": "1332979200"}, "office": "Edinburgh", "extn": "6224"}, {"name": "Airi Satou", "position": "Accountant", "salary": "$162,700", "start_date": {"display": "Fri 28th Nov 08", "timestamp": "1227830400"}, "office": "Tokyo", "extn": "5407"}, {"name": "Brielle Williamson", "position": "Integration Specialist", "salary": "$372,000", "start_date": {"display": "Sun 2nd Dec 12", "timestamp": "1354406400"}, "office": "New York", "extn": "4804"}, {"name": "Herrod Chandler", "position": "Sales Assistant", "salary": "$137,500", "start_date": {"display": "Mon 6th Aug 12", "timestamp": "1344211200"}, "office": "San Francisco", "extn": "9608"}, {"name": "Rhona Davidson", "position": "Integration Specialist", "salary": "$327,900", "start_date": {"display": "Thu 14th Oct 10", "timestamp": "1287014400"}, "office": "Tokyo", "extn": "6200"}, {"name": "Colleen Hurst", "position": "Javascript Developer", "salary": "$205,500", "start_date": {"display": "Tue 15th Sep 09", "timestamp": "1252972800"}, "office": "San Francisco", "extn": "2360"}, {"name": "Sonya Frost", "position": "Software Engineer", "salary": "$103,600", "start_date": {"display": "Sat 13th Dec 08", "timestamp": "1229126400"}, "office": "Edinburgh", "extn":...