php - How to get hidden associative array field values inside jQuery post using ajax

I want to get the value of associative hidden fields array in PHP by posting it through jquery ajax, currently I am trying in this way

Here, HTML Code is:

<input type="hidden" class="override_arr" name="override_arr[][id]" value="1">';
<input type="hidden" class="override_arr" name="override_arr[][override_price_second]" value="5">';
<input type="hidden" class="override_arr" name="override_arr[][override_price_third]" value="10">
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Jquery Code

var new_override_arr = [];
 $('input.override_arr').each(function(i, elem) {
       new_override_arr.push({
       'id': $(elem).attr('id'),
       'override_price_second': $(elem).val(),
        'override_price_third': $(elem).val(),
         });
   });
var formData = new FormData();
formData.append('new_override_arr', new_override_arr);

**Call Ajax**
$.ajax({
   url:'sa-store-view.php',
   type:'POST',
   data:formData,
   success:function(result){
   }
});
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Try to get value in php file(sa-store-view.php)

<?php
echo "<pre>";print_r($_POST['new_override_arr']);
?>
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but displaying like this

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
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please help me.

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