Annual Operating Expenses - SelectPortfoliosFidelityAdvisorCommunicationServicesFund-AMCIZPRO - SelectPortfoliosFidelityAdvisorCommunicationServicesFund-AMCIZPRO - Select Communication Services Portfolio	Apr. 29, 2023
Fidelity Advisor Communication Services Fund - Class I
Operating Expenses:
Management fee	0.53%
Distribution and/or Service (12b-1) fees	none
Other expenses	0.23%
Total annual operating expenses	0.76%
Fidelity Advisor Communication Services Fund - Class Z
Operating Expenses:
Management fee	0.53%
Distribution and/or Service (12b-1) fees	none
Other expenses	0.09%
Total annual operating expenses	0.62%
Fidelity Advisor Communication Services Fund - Class A
Operating Expenses:
Management fee	0.53%
Distribution and/or Service (12b-1) fees	0.25%
Other expenses	0.29%
Total annual operating expenses	1.07%
Fidelity Advisor Communication Services Fund - Class M
Operating Expenses:
Management fee	0.53%
Distribution and/or Service (12b-1) fees	0.50%
Other expenses	0.28%
Total annual operating expenses	1.31%
Fidelity Advisor Communication Services Fund - Class C
Operating Expenses:
Management fee	0.53%
Distribution and/or Service (12b-1) fees	1.00%
Other expenses	0.25%
Total annual operating expenses	1.78%