Investment Objectives and Goals |
Oct. 02, 2025 |
|---|---|
| Principal LifeTime 2015 Fund | |
| Prospectus [Line Items] | |
| Risk/Return [Heading] | SUMMARY FOR PRINCIPAL LIFETIME 2015 FUND |
| Principal LifeTime Hybrid 2015 Fund | |
| Prospectus [Line Items] | |
| Risk/Return [Heading] | SUMMARY FOR PRINCIPAL LIFETIME HYBRID 2015 FUND |