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Subsequent Event	6 Months Ended
Subsequent Event	Apr. 29, 2012
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On May 10, 2012, Applied announced that a committee of the Board of Directors approved a plan (the Restructuring Plan) to restructure the Company’s Energy and Environmental Solutions segment in light of challenging industry conditions affecting the solar photovoltaic and light-emitting diode (LED) equipment markets. These actions are consistent with the Company’s previously-stated goal to reduce the Energy and Environmental Solutions segment’s annual revenue breakeven level. As part of the Restructuring Plan, Applied expects to relocate manufacturing, business operations and customer support functions of precision wafering systems and significantly reduce LED development activities, which will impact up to approximately 250 positions globally. The total estimated pre-tax cost of implementing the Restructuring Plan is expected to be in the range of approximately $70 million to $100 million, which will be incurred over a period of 12 to 18 months beginning in the third quarter of fiscal 2012.