beautifulsoup: get all table data - python-3.x

Question

I am using django beautifulsoup to get the all data on html tables. I have the code that strips the tables and saves the table data as a list of lists:
soup = bs.BeautifulSoup(html_source, 'lxml')
table = soup.find('table', {'id': 'detail'})
rows = table.findAll('tr')
data = [[td.findChildren(text=True) for td in tr.findAll(['th', 'td'])] for tr in rows]
data = [[u"".join(d).strip() for d in l] for l in data]
This code worked well so far, but somehow it does not capture the entire data of this html table. It gets only the thead rows. I cannot figure out why?
<table class="table_type1" data-tdborder="" id="detail">
<colgroup>
<col width="38">
<col>
<col>
<col width="140">
</colgroup>
<thead>
<tr>
<th>No.</th>
<th>Status</th>
<th>Location</th>
<th>Event Date</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center;">1</td>
<td class="multi_row" style="line-height:15px;">Empty Container Release to Shipper</td>
<td class="multi_row" style="line-height:15px;">SHANGHAI, SHANGHAI ,CHINA<br> GREATING FORTUNE (SHANGHAI) CONTAIN</td>
<td class="ico_a">2017-10-09 10:51</td>
</tr>
<tr>
<td style="text-align:center;">2</td>
<td class="multi_row" style="line-height:15px;">Gate In to Outbound Terminal</td>
<td class="multi_row" style="line-height:15px;">SHANGHAI, SHANGHAI ,CHINA<br> SHANGHAI SHENDONG INTERNATIONAL CON (DXYS)</td>
<td class="ico_a">2017-10-10 04:43</td>
</tr>
<tr>
<td style="text-align:center;">3</td>
<td class="multi_row" style="line-height:15px;">Loaded on 'NYK LYNX 2610E' at Port of Loading<br> NYK LYNX 2610E</td>
<td class="multi_row" style="line-height:15px;">SHANGHAI, SHANGHAI ,CHINA<br> SHANGHAI SHENDONG INTERNATIONAL CON (DXYS)</td>
<td class="ico_a">2017-10-11 22:58</td>
</tr>
<tr>
<td style="text-align:center;">4</td>
<td class="multi_row" style="line-height:15px;">'NYK LYNX 2610E' Departure from Port of Loading<br> NYK LYNX 2610E</td>
<td class="multi_row" style="line-height:15px;">SHANGHAI, SHANGHAI ,CHINA<br> SHANGHAI SHENDONG INTERNATIONAL CON (DXYS)</td>
<td class="ico_a">2017-10-12 05:00</td>
</tr>
<tr>
<td style="text-align:center;">5</td>
<td class="multi_row" style="line-height:15px;">'NYK LYNX 2610E' Arrival at Port of Discharging<br> NYK LYNX 2610E</td>
<td class="multi_row" style="line-height:15px;">VALPARAISO ,CHILE<br> TERMINAL PACIFICO SUR</td>
<td class="ico_e">2017-11-14 21:00</td>
</tr>
<tr>
<td style="text-align:center;">6</td>
<td class="multi_row" style="line-height:15px;">'NYK LYNX 2610E' POD Berthing Destination<br> NYK LYNX 2610E</td>
<td class="multi_row" style="line-height:15px;">VALPARAISO ,CHILE<br> TERMINAL PACIFICO SUR</td>
<td class="ico_e">2017-11-14 22:00</td>
</tr>
<tr>
<td style="text-align:center;">7</td>
<td class="multi_row" style="line-height:15px;">Unloaded from 'NYK LYNX 2610E' at Port of Discharging<br> NYK LYNX 2610E</td>
<td class="multi_row" style="line-height:15px;">VALPARAISO ,CHILE<br> TERMINAL PACIFICO SUR</td>
<td class="ico_e">2017-11-14 23:30</td>
</tr>
<tr>
<td style="text-align:center;">8</td>
<td class="multi_row" style="line-height:15px;">Gate Out from Inbound Terminal for Delivery to Consignee (or Port Shuttle)</td>
<td class="multi_row" style="line-height:15px;">VALPARAISO ,CHILE<br> TERMINAL PACIFICO SUR</td>
<td class="ico_e">2017-11-15 04:00</td>
</tr>
<tr>
<td style="text-align:center;">9</td>
<td class="multi_row" style="line-height:15px;">Empty Container Returned from Customer</td>
<td class="multi_row" style="line-height:15px;">VALPARAISO ,CHILE<br> </td>
<td class="ico_e">2017-11-15 10:00</td>
</tr>
</tbody>
</table>
Edit
I printed soup object and went through all the html code and surprisingly it contains only the thead of the table and not the tbody, is this a bug in boutifulsoup? This is the only part of the table that beautifulsoup4 captures:
<table class="table_type1" data-tdborder="" id="detail">
<colgroup>
<col width="38"/>
<col/>
<col/>
<col width="140"/>
</colgroup>
<thead>
<tr>
<th>No.</th>
<th>Status</th>
<th>Location</th>
<th>Event Date</th>
</tr>
</thead>
</table>