Showing/Hiding Fields on checkbox event using jQuery

I tried to use this issue as a guide, but I'm not sure what I'm doing wrong with my below code. I'd appreciate it if someone could help out.

A little background: I have limited ability to change the HTML as it's in Confluence using an add-on called Confiforms. I can hide/show fields using Confiforms, but I generally find that it takes a performance hit when I configure it that way.

HTML:

<tr>
    <td class="label editLabel">Customer Impact?</td>
    <td>
        <p class="auto-cursor-target">
            <span class="i_holdingrow_impact">
                <span id="i_holdingrow_impact">
                    <input cf-field="impact" class="radio" type="checkbox" name="impact" id="i_impact">
                </span>
            </span>
        </p>
    </td>
</tr>
<tr>
    <td/>
    <td>
        <p>
            <span class="i_holdingrow_impactDesc">
                <span id="i_holdingrow_impactDesc">
                    <textarea cf-field="impactDesc" id="i_impactDesc" name="impactDesc" rows="4" class="textarea large-field cf_textarea"/>
                </span>
            </span>
        </p>
    </td>
</tr>

Relevant jQuery:

$('input[type="checkbox"]').change(() => {
    if ($(this).is(':checked')) {
        $(this).closest('tr').next('tr').show();
    }
    else {
        $(this).closest('tr').next('tr').hide();
    }
});

Thanks!