Employee Benefits - DWS Share based Plans (Detail) - DWS Share-Based Plans shares in Thousands |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2025
yr
€ / shares
shares
|
Dec. 31, 2024
yr
€ / shares
shares
|
|
| DWS Share based Plans [Line Items] | ||
| Units (in shares) | shares | 23 | 367 |
| Fair value (in EUR per share) | € 34.36 | € 17.72 |
| Share price (in EUR per share) | 56.50 | 39.80 |
| Exercise price (in EUR per share) | € 22.33 | € 22.33 |
| Expected volatility (weighted-average) | 33.00% | 33.00% |
| Expected life (weighted-average) in years | yr | 1.7 | 0.8 |
| Expected dividends (% of income) | 65.00% | 65.00% |