Restructuring Charges	9 Months Ended
Jul. 31, 2026
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges In November 2025, we initiated a restructuring plan for involuntary employee terminations as part of a business reorganization (the 2026 Plan) with total charges expected to be in the range of $300.0 million and $350.0 million. In August 2026, our Board of Directors (the Board) approved updated estimates of charges related to the 2026 Plan ranging from $425.0 million to $500.0 million, consisting primarily of severance and other one-time termination benefits, and other costs such as certain site closures as part of Synopsys' global site strategy. The 2026 Plan is anticipated to be completed by the end of fiscal 2027, with majority of the workforce reduction in fiscal 2026. During the three and nine months ended July 31, 2026, we recorded restructuring charges of $2.2 million and $236.3 million, respectively, and made payments of $41.3 million and $171.4 million, respectively, under the 2026 Plan. As of July 31, 2026, the outstanding restructuring related liabilities were $64.9 million and recorded in accounts payable and accrued liabilities in the condensed consolidated balance sheets.

Restructuring Charges

9 Months Ended

Jul. 31, 2026

Restructuring and Related Activities [Abstract]

In November 2025, we initiated a restructuring plan for involuntary employee terminations as part of a business reorganization (the 2026 Plan) with total charges expected to be in the range of $300.0 million and $350.0 million. In August 2026, our Board of Directors (the Board) approved updated estimates of charges related to the 2026 Plan ranging from $425.0 million to $500.0 million, consisting primarily of severance and other one-time termination benefits, and other costs such as certain site closures as part of Synopsys' global site strategy. The 2026 Plan is anticipated to be completed by the end of fiscal 2027, with majority of the workforce reduction in fiscal 2026.

During the three and nine months ended July 31, 2026, we recorded restructuring charges of $2.2 million and $236.3 million, respectively, and made payments of $41.3 million and $171.4 million, respectively, under the 2026 Plan. As of July 31, 2026, the outstanding restructuring related liabilities were $64.9 million and recorded in accounts payable and accrued liabilities in the condensed consolidated balance sheets.