Employee benefit plans - Fair Value of Unfunded, Non-qualified Deferred Compensation Plans Assets (Details) - USD ($) $ in Millions |
Jan. 31, 2026 |
Feb. 01, 2025 |
|---|---|---|
| Defined Contribution Plan Disclosure [Line Items] | ||
| Deferred compensation plan assets | $ 34.8 | $ 31.0 |
| Mutual funds | ||
| Defined Contribution Plan Disclosure [Line Items] | ||
| Deferred compensation plan assets | 28.9 | 28.3 |
| Level 1 | ||
| Defined Contribution Plan Disclosure [Line Items] | ||
| Deferred compensation plan assets | 28.9 | 28.3 |
| Level 1 | Mutual funds | ||
| Defined Contribution Plan Disclosure [Line Items] | ||
| Deferred compensation plan assets | 28.9 | 28.3 |
| NAV | Money market mutual funds | ||
| Defined Contribution Plan Disclosure [Line Items] | ||
| Deferred compensation plan assets | $ 5.9 | $ 2.7 |