FAIR VALUE MEASUREMENTS - Financial Assets And Liabilities Measured At Fair Value On Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Money Market Funds
Assets:
Fair value of financial assets measured on recurring basis		$ 7,100
Liabilities:
Investment, Type [Extensible Enumeration]		Restricted cash and cash equivalents
Fair Value, Measurements, Recurring \| Acquisition-related contingent consideration—current
Liabilities:
Fair value of financial liabilities measured on recurring basis	$ 3,303
Fair Value, Measurements, Recurring \| Acquisition-related contingent consideration—noncurrent
Liabilities:
Fair value of financial liabilities measured on recurring basis	4,041
Fair Value, Measurements, Recurring \| Acquisition-related Contingent Consideration \| Predecessor
Liabilities:
Fair value of financial liabilities measured on recurring basis		$ 12,447
Fair Value, Measurements, Recurring \| Money Market Funds
Assets:
Fair value of financial assets measured on recurring basis	141,315
Fair Value, Measurements, Recurring \| Money Market Funds \| Predecessor
Assets:
Fair value of financial assets measured on recurring basis		7,123
Fair Value, Measurements, Recurring \| Level 1 Inputs \| Acquisition-related contingent consideration—current
Liabilities:
Fair value of financial liabilities measured on recurring basis	0
Fair Value, Measurements, Recurring \| Level 1 Inputs \| Acquisition-related contingent consideration—noncurrent
Liabilities:
Fair value of financial liabilities measured on recurring basis	0
Fair Value, Measurements, Recurring \| Level 1 Inputs \| Acquisition-related Contingent Consideration \| Predecessor
Liabilities:
Fair value of financial liabilities measured on recurring basis		0
Fair Value, Measurements, Recurring \| Level 1 Inputs \| Money Market Funds
Assets:
Fair value of financial assets measured on recurring basis	141,315
Fair Value, Measurements, Recurring \| Level 1 Inputs \| Money Market Funds \| Predecessor
Assets:
Fair value of financial assets measured on recurring basis		7,123
Fair Value, Measurements, Recurring \| Level 2 Inputs \| Acquisition-related contingent consideration—current
Liabilities:
Fair value of financial liabilities measured on recurring basis	0
Fair Value, Measurements, Recurring \| Level 2 Inputs \| Acquisition-related contingent consideration—noncurrent
Liabilities:
Fair value of financial liabilities measured on recurring basis	0
Fair Value, Measurements, Recurring \| Level 2 Inputs \| Acquisition-related Contingent Consideration \| Predecessor
Liabilities:
Fair value of financial liabilities measured on recurring basis		0
Fair Value, Measurements, Recurring \| Level 2 Inputs \| Money Market Funds
Assets:
Fair value of financial assets measured on recurring basis	0
Fair Value, Measurements, Recurring \| Level 2 Inputs \| Money Market Funds \| Predecessor
Assets:
Fair value of financial assets measured on recurring basis		0
Fair Value, Measurements, Recurring \| Level 3 Inputs \| Acquisition-related contingent consideration—current
Liabilities:
Fair value of financial liabilities measured on recurring basis	3,303
Fair Value, Measurements, Recurring \| Level 3 Inputs \| Acquisition-related contingent consideration—noncurrent
Liabilities:
Fair value of financial liabilities measured on recurring basis	4,041
Fair Value, Measurements, Recurring \| Level 3 Inputs \| Acquisition-related Contingent Consideration \| Predecessor
Liabilities:
Fair value of financial liabilities measured on recurring basis		12,447
Fair Value, Measurements, Recurring \| Level 3 Inputs \| Money Market Funds
Assets:
Fair value of financial assets measured on recurring basis	$ 0
Fair Value, Measurements, Recurring \| Level 3 Inputs \| Money Market Funds \| Predecessor
Assets:
Fair value of financial assets measured on recurring basis		$ 0

Endo, Inc. 10-K