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Business Overview	12 Months Ended
Business Overview	Jan. 03, 2015
Accounting Policies [Abstract]
BUSINESS OVERVIEW	BUSINESS OVERVIEW Cadence Design Systems, Inc., or Cadence, develops system design enablement, or SDE, solutions that its customers use to design whole electronics systems and increasingly small and complex integrated circuits, or ICs, and electronic devices. Cadence’s solutions are designed to help its customers reduce the time to bring an electronics system, IC or electronic device to market and to reduce their design, development and manufacturing costs. Cadence’s SDE product offerings include electronic design automation, or EDA, software, emulation and prototyping hardware, and two categories of intellectual property, or IP, commonly referred to as verification IP, or VIP, and design IP. Cadence provides maintenance for its software, emulation hardware, and IP product offerings. Cadence also provides engineering services related to methodology, education, hosted design solutions and design services for advanced ICs and development of custom IP. These services help Cadence’s customers manage and accelerate their electronics product development processes.