Basis of Presentation, Liquidity and Summary of Significant Accounting Policies - Schedule of Lineage's Ownership of Outstanding Shares of its Subsidiaries (Details)	6 Months Ended
	Jun. 30, 2024
Cell Cure Neurosciences Ltd [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Field of business description	Manufacturing of Lineage’s product candidates
Ownership percentage by parent	94.00%	[1]
Es CellInternational Pte Ltd [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Field of business description	Research and clinical grade cell lines
Ownership percentage by parent	100.00%

[1] Includes shares owned by Lineage and ES Cell International Pte. Ltd.