SUBSEQUENT EVENTS (Details) - Atara Biotherapeutics, Inc. - Subsequent event $ in Millions	Oct. 28, 2022 USD ($) ft²
Subsequent Event [Line Items]
Area of real estate property (square feet) \| ft²	13,670
Expected income from sublease \| $	$ 1.7

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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Period Type:	duration