Fair Value Measurements - Schedule of Changes in Fair Value of the Level 3 Warrant Liabilities (Details) - USD ($) $ in Thousands		9 Months Ended
	Apr. 01, 2022	Dec. 31, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Initial fair value measurement on April 1, 2022	$ 3,202
Change in valuation		$ (2,422)
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Fair Value Adjustment of Warrants
Fair value as of December 31, 2022		$ 780
Short-term Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Initial fair value measurement on April 1, 2022	793
Change in valuation		(771)
Fair value as of December 31, 2022		22
Long-term Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Initial fair value measurement on April 1, 2022	$ 2,409
Change in valuation		(1,651)
Fair value as of December 31, 2022		$ 758

Calithera Biosciences, Inc. 10-K