Expense Example, No Redemption - SelectPortfoliosFidelityAdvisorConsumerStaplesFund-AMCIZPRO - SelectPortfoliosFidelityAdvisorConsumerStaplesFund-AMCIZPRO - Select Consumer Staples Portfolio	Apr. 29, 2024 USD ($)
Fidelity Advisor Consumer Staples Fund - Class A
Expense Example, No Redemption:
1 Year	$ 669
3 Years	869
5 Years	1,086
10 Years	1,707
Fidelity Advisor Consumer Staples Fund - Class C
Expense Example, No Redemption:
1 Year	175
3 Years	542
5 Years	933
10 Years	1,834
Fidelity Advisor Consumer Staples Fund - Class M
Expense Example, No Redemption:
1 Year	471
3 Years	727
5 Years	1,002
10 Years	1,787
Fidelity Advisor Consumer Staples Fund - Class I
Expense Example, No Redemption:
1 Year	73
3 Years	227
5 Years	395
10 Years	883
Fidelity Advisor Consumer Staples Fund - Class Z
Expense Example, No Redemption:
1 Year	59
3 Years	186
5 Years	324
10 Years	$ 726