REVENUE - Revenue by Product Category (Details)		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group		100.00%	100.00%
Custom Integrated Circuit (“IC”) Design and Simulation
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group		22.00%	20.00%
Digital IC Design and Signoff
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group		29.00%	25.00%
Functional Verification, including Emulation and Prototyping Hardware*
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group	[1]	25.00%	32.00%
Intellectual Property (“IP”)
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group		12.00%	11.00%
System Design and Analysis
Revenue from External Customer [Line Items]
Percentage of product and maintenance revenue by product group		12.00%	12.00%

[1] Includes immaterial amount of revenue accounted for under leasing arrangements.