Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	Jan. 31, 2026	Feb. 01, 2025	Feb. 03, 2024
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 59,697,000	$ 59,697,000
Accumulated goodwill impairment losses	137,300,000
Impairment of goodwill	0	0
Impairment of intangible assets	$ 0	0
Quantitative analysis test	3 years
Amortization expense for intangible assets	$ 4,700,000	$ 5,200,000	$ 6,900,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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+ Details

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References

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+ Details

- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References + Details

J.Jill, Inc. 10-K