Shareholder Report, Holdings (Details)	Jun. 30, 2026
Empower Mid Cap Value Fund - Institutional Class \| Kinder Morgan Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.34%
Empower Mid Cap Value Fund - Institutional Class \| AMETEK Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.29%
Empower Mid Cap Value Fund - Institutional Class \| IQVIA Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.09%
Empower Mid Cap Value Fund - Institutional Class \| DR Horton Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.06%
Empower Mid Cap Value Fund - Institutional Class \| Block Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.05%
Empower Mid Cap Value Fund - Institutional Class \| Synchrony Financial [Member]
Holdings [Line Items]
Percent of Total Investments	1.04%
Empower Mid Cap Value Fund - Institutional Class \| VICI Properties Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	1.04%
Empower Mid Cap Value Fund - Institutional Class \| Atmos Energy Corp [Member]
Holdings [Line Items]
Percent of Total Investments	1.03%
Empower Mid Cap Value Fund - Institutional Class \| Sysco Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.98%
Empower Mid Cap Value Fund - Institutional Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	1.71%
Empower Mid Cap Value Fund - Institutional Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.18%
Empower Mid Cap Value Fund - Institutional Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.00%
Empower Mid Cap Value Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	19.73%
Empower Mid Cap Value Fund - Institutional Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	12.27%
Empower Mid Cap Value Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	22.96%
Empower Mid Cap Value Fund - Institutional Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.67%
Empower Mid Cap Value Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
Empower Mid Cap Value Fund - Institutional Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.71%
Empower Mid Cap Value Fund - Institutional Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.17%
Empower Mid Cap Value Fund - Institutional Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	4.81%
Empower Mid Cap Value Fund - Investor Class \| Kinder Morgan Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.34%
Empower Mid Cap Value Fund - Investor Class \| AMETEK Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.29%
Empower Mid Cap Value Fund - Investor Class \| IQVIA Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.09%
Empower Mid Cap Value Fund - Investor Class \| DR Horton Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.06%
Empower Mid Cap Value Fund - Investor Class \| Block Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.05%
Empower Mid Cap Value Fund - Investor Class \| Synchrony Financial [Member]
Holdings [Line Items]
Percent of Total Investments	1.04%
Empower Mid Cap Value Fund - Investor Class \| VICI Properties Inc REIT [Member]
Holdings [Line Items]
Percent of Total Investments	1.04%
Empower Mid Cap Value Fund - Investor Class \| Atmos Energy Corp [Member]
Holdings [Line Items]
Percent of Total Investments	1.03%
Empower Mid Cap Value Fund - Investor Class \| Sysco Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.98%
Empower Mid Cap Value Fund - Investor Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	1.71%
Empower Mid Cap Value Fund - Investor Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.18%
Empower Mid Cap Value Fund - Investor Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.00%
Empower Mid Cap Value Fund - Investor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	19.73%
Empower Mid Cap Value Fund - Investor Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	12.27%
Empower Mid Cap Value Fund - Investor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	22.96%
Empower Mid Cap Value Fund - Investor Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.67%
Empower Mid Cap Value Fund - Investor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
Empower Mid Cap Value Fund - Investor Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.71%
Empower Mid Cap Value Fund - Investor Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.17%
Empower Mid Cap Value Fund - Investor Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	4.81%
Empower S&P Mid Cap 400® Index Fund - Class L \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower S&P Mid Cap 400® Index Fund - Class L \| Twilio Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	0.85%
Empower S&P Mid Cap 400® Index Fund - Class L \| Carpenter Technology Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.83%
Empower S&P Mid Cap 400® Index Fund - Class L \| MKS Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.81%
Empower S&P Mid Cap 400® Index Fund - Class L \| Curtiss-Wright Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.75%
Empower S&P Mid Cap 400® Index Fund - Class L \| nVent Electric PLC [Member]
Holdings [Line Items]
Percent of Total Investments	0.74%
Empower S&P Mid Cap 400® Index Fund - Class L \| Entegris Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.74%
Empower S&P Mid Cap 400® Index Fund - Class L \| ATI Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.72%
Empower S&P Mid Cap 400® Index Fund - Class L \| Illumina Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.72%
Empower S&P Mid Cap 400® Index Fund - Class L \| TechnipFMC PLC [Member]
Holdings [Line Items]
Percent of Total Investments	0.71%
Empower S&P Mid Cap 400® Index Fund - Class L \| Short Term Investment [Member]
Holdings [Line Items]
Percent of Total Investments	0.10%
Empower S&P Mid Cap 400® Index Fund - Class L \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	11.71%
Empower S&P Mid Cap 400® Index Fund - Class L \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	13.91%
Empower S&P Mid Cap 400® Index Fund - Class L \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	25.36%
Empower S&P Mid Cap 400® Index Fund - Class L \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	12.29%
Empower S&P Mid Cap 400® Index Fund - Class L \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	20.05%
Empower S&P Mid Cap 400® Index Fund - Class L \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.75%
Empower S&P Mid Cap 400® Index Fund - Class L \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.39%
Empower S&P Mid Cap 400® Index Fund - Class L \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower S&P Mid Cap 400® Index Fund - Class L \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.99%
Empower S&P Mid Cap 400® Index Fund - Class L \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	4.89%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Twilio Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	0.85%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Carpenter Technology Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.83%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| MKS Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.81%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Curtiss-Wright Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.75%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| nVent Electric PLC [Member]
Holdings [Line Items]
Percent of Total Investments	0.74%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Entegris Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.74%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| ATI Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.72%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Illumina Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.72%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| TechnipFMC PLC [Member]
Holdings [Line Items]
Percent of Total Investments	0.71%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Short Term Investment [Member]
Holdings [Line Items]
Percent of Total Investments	0.10%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	11.71%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	13.91%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	25.36%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	12.29%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	20.05%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.75%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.39%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.99%
Empower S&P Mid Cap 400® Index Fund - Institutional Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	4.89%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Twilio Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	0.85%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Carpenter Technology Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.83%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| MKS Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.81%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Curtiss-Wright Corp [Member]
Holdings [Line Items]
Percent of Total Investments	0.75%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| nVent Electric PLC [Member]
Holdings [Line Items]
Percent of Total Investments	0.74%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Entegris Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.74%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| ATI Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.72%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Illumina Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.72%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| TechnipFMC PLC [Member]
Holdings [Line Items]
Percent of Total Investments	0.71%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Short Term Investment [Member]
Holdings [Line Items]
Percent of Total Investments	0.10%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	11.71%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	13.91%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	25.36%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	12.29%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	20.05%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.75%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.39%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.99%
Empower S&P Mid Cap 400® Index Fund - Investor Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	4.89%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.39%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Keysight Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.14%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Mettler-Toledo International Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.07%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| MACOM Technology Solutions Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.02%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Teradyne Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.00%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Datadog Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	1.88%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Yum! Brands Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.83%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Lattice Semiconductor Corp [Member]
Holdings [Line Items]
Percent of Total Investments	1.71%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Burlington Stores Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.70%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Alnylam Pharmaceuticals Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	24.94%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	22.55%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	19.82%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.54%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.57%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.99%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.87%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	0.90%
Empower T. Rowe Price Mid Cap Growth Fund - Institutional Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	0.26%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.39%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Keysight Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.14%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Mettler-Toledo International Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.07%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| MACOM Technology Solutions Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.02%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Teradyne Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.00%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Datadog Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	1.88%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Yum! Brands Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.83%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Lattice Semiconductor Corp [Member]
Holdings [Line Items]
Percent of Total Investments	1.71%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Burlington Stores Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.70%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Alnylam Pharmaceuticals Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	24.94%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	22.55%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	19.82%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.54%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.57%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.99%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.87%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.56%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	0.90%
Empower T. Rowe Price Mid Cap Growth Fund - Investor Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	0.26%

Shareholder Report, Holdings (Details)

Jun. 30, 2026