idで取得しようと思うとField 'id' expected a number but got 〜〜と出る

前提・実現したいこと

Djangoでurl ~~~/app_name/1 のようにidを指定してAreaCodeのarea_name_jaを表示したい

発生している問題・エラーメッセージ

TypeError at /app_name/1/
Field 'id' expected a number but got <django.db.models.query_utils.DeferredAttribute object at 0x102549a00>.
Request Method:	GET
Request URL:	http://127.0.0.1:8000/app_name/1/
Django Version:	3.0.5
Exception Type:	TypeError
Exception Value:	
Field 'id' expected a number but got <django.db.models.query_utils.DeferredAttribute object at 0x102549a00>.
Exception Location:	/Users/fuminori/.pyenv/versions/3.9.0a5/lib/python3.9/site-packages/django/db/models/fields/__init__.py in get_prep_value, line 1774
Python Executable:	/Users/fuminori/.pyenv/versions/3.9.0a5/bin/python
Python Version:	3.9.0
Python Path:
    ['/Users/fuminori/ember',
     '/Users/fuminori/.pyenv/versions/3.9.0a5/lib/python39.zip',
     '/Users/fuminori/.pyenv/versions/3.9.0a5/lib/python3.9',
     '/Users/fuminori/.pyenv/versions/3.9.0a5/lib/python3.9/lib-dynload',
     '/Users/fuminori/.pyenv/versions/3.9.0a5/lib/python3.9/site-packages']
Server time:	水, 6 5月 2020 22:10:57 +0900
Server time:	水, 6 5月 2020 22:10:57 +0900

該当のソースコード

app_name/models.py

Python
from django.db import models

class AreaCode(models.Model):
    id = models.AutoField(primary_key=True) 
    area_name_ja = models.CharField(max_length=20)
    area_name_en = models.CharField(max_length=20)
    show_area_id = models.CharField(max_length=100)

app_name/urls.py

Python
from django.urls import path
from . import views

urlpatterns = [
    path('', views.index, name='index'),
    # ex: /polls/5/
    path('<int:OrgType_id>/', views.detail, name='detail'),
    # ex: /polls/5/results/
    path('<int:OrgType_id>/results/', views.results, name='results'),
    # ex: /polls/5/vote/
    path('<int:OrgType_id>/vote/', views.vote, name='vote'),
]

app_name/view.py

Python
from django.http import Http404
from django.http import HttpResponse
from django.template import loader
from django.shortcuts import get_object_or_404, render
from .models import AreaCode

def index(request):
    return render(request, 'app_name/index.html')

def detail(request, OrgType_id):

    area = get_object_or_404(AreaCode, pk=AreaCode.id)
    return render(request, 'app_name/detail.html', {'area': area})

def results(request, OrgType_id):
    response = "You're looking at the results of question %s."
    return HttpResponse(response % AreaCode.id)

def vote(request, question_id):
    return HttpResponse("You're voting on question %s." % AreaCode.id)