Shareholder Report, Holdings (Details)	Jun. 30, 2025
Empower Real Estate Index Fund - Institutional Class \| Prologis Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	9.35%
Empower Real Estate Index Fund - Institutional Class \| Welltower Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	9.16%
Empower Real Estate Index Fund - Institutional Class \| Equinix Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	7.46%
Empower Real Estate Index Fund - Institutional Class \| Digital Realty Trust Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	5.29%
Empower Real Estate Index Fund - Institutional Class \| Realty Income Corp REIT [Member]
Holdings [Line Items]
Percent of Total Investments	4.99%
Empower Real Estate Index Fund - Institutional Class \| Simon Property Group Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	4.73%
Empower Real Estate Index Fund - Institutional Class \| Public Storage REIT [Member]
Holdings [Line Items]
Percent of Total Investments	4.44%
Empower Real Estate Index Fund - Institutional Class \| Extra Space Storage Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	3.00%
Empower Real Estate Index Fund - Institutional Class \| AvalonBay Communities Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	2.77%
Empower Real Estate Index Fund - Institutional Class \| Ventas Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	2.73%
Empower Real Estate Index Fund - Institutional Class \| Health Care REITS [Member]
Holdings [Line Items]
Percent of Total Investments	17.70%
Empower Real Estate Index Fund - Institutional Class \| Diversified REITS [Member]
Holdings [Line Items]
Percent of Total Investments	15.44%
Empower Real Estate Index Fund - Institutional Class \| Apartment REITS [Member]
Holdings [Line Items]
Percent of Total Investments	14.43%
Empower Real Estate Index Fund - Institutional Class \| Warehouse/Industry REITS [Member]
Holdings [Line Items]
Percent of Total Investments	13.68%
Empower Real Estate Index Fund - Institutional Class \| Storage REITS [Member]
Holdings [Line Items]
Percent of Total Investments	8.58%
Empower Real Estate Index Fund - Institutional Class \| Single Tenant REITS [Member]
Holdings [Line Items]
Percent of Total Investments	7.53%
Empower Real Estate Index Fund - Institutional Class \| Shopping Centers REITS [Member]
Holdings [Line Items]
Percent of Total Investments	5.69%
Empower Real Estate Index Fund - Institutional Class \| Regional Malls REITS [Member]
Holdings [Line Items]
Percent of Total Investments	5.45%
Empower Real Estate Index Fund - Institutional Class \| Office Property REITS [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
Empower Real Estate Index Fund - Institutional Class \| Hotels REITS [Member]
Holdings [Line Items]
Percent of Total Investments	2.82%
Empower Real Estate Index Fund - Institutional Class \| Manufactured Homes REITS [Member]
Holdings [Line Items]
Percent of Total Investments	2.58%
Empower Real Estate Index Fund - Institutional Class \| Government Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	0.92%
Empower Real Estate Index Fund - Institutional Class \| Short Term Investment [Member]
Holdings [Line Items]
Percent of Total Investments	0.78%
Empower Real Estate Index Fund - Investor Class \| Prologis Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	9.35%
Empower Real Estate Index Fund - Investor Class \| Welltower Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	9.16%
Empower Real Estate Index Fund - Investor Class \| Equinix Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	7.46%
Empower Real Estate Index Fund - Investor Class \| Digital Realty Trust Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	5.29%
Empower Real Estate Index Fund - Investor Class \| Realty Income Corp REIT [Member]
Holdings [Line Items]
Percent of Total Investments	4.99%
Empower Real Estate Index Fund - Investor Class \| Simon Property Group Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	4.73%
Empower Real Estate Index Fund - Investor Class \| Public Storage REIT [Member]
Holdings [Line Items]
Percent of Total Investments	4.44%
Empower Real Estate Index Fund - Investor Class \| Extra Space Storage Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	3.00%
Empower Real Estate Index Fund - Investor Class \| AvalonBay Communities Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	2.77%
Empower Real Estate Index Fund - Investor Class \| Ventas Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	2.73%
Empower Real Estate Index Fund - Investor Class \| Health Care REITS [Member]
Holdings [Line Items]
Percent of Total Investments	17.70%
Empower Real Estate Index Fund - Investor Class \| Diversified REITS [Member]
Holdings [Line Items]
Percent of Total Investments	15.44%
Empower Real Estate Index Fund - Investor Class \| Apartment REITS [Member]
Holdings [Line Items]
Percent of Total Investments	14.43%
Empower Real Estate Index Fund - Investor Class \| Warehouse/Industry REITS [Member]
Holdings [Line Items]
Percent of Total Investments	13.68%
Empower Real Estate Index Fund - Investor Class \| Storage REITS [Member]
Holdings [Line Items]
Percent of Total Investments	8.58%
Empower Real Estate Index Fund - Investor Class \| Single Tenant REITS [Member]
Holdings [Line Items]
Percent of Total Investments	7.53%
Empower Real Estate Index Fund - Investor Class \| Shopping Centers REITS [Member]
Holdings [Line Items]
Percent of Total Investments	5.69%
Empower Real Estate Index Fund - Investor Class \| Regional Malls REITS [Member]
Holdings [Line Items]
Percent of Total Investments	5.45%
Empower Real Estate Index Fund - Investor Class \| Office Property REITS [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
Empower Real Estate Index Fund - Investor Class \| Hotels REITS [Member]
Holdings [Line Items]
Percent of Total Investments	2.82%
Empower Real Estate Index Fund - Investor Class \| Manufactured Homes REITS [Member]
Holdings [Line Items]
Percent of Total Investments	2.58%
Empower Real Estate Index Fund - Investor Class \| Government Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	0.92%
Empower Real Estate Index Fund - Investor Class \| Short Term Investment [Member]
Holdings [Line Items]
Percent of Total Investments	0.78%

Shareholder Report, Holdings (Details)

Jun. 30, 2025