| Component: (Network and Table) | |
|---|---|
| Network | 1105 - Disclosure - Schedule of Restructuring and Asset Impairment Charges (Detail) (http://www.lamresearch.com/taxonomy/role/DisclosureScheduleOfRestructuringAndAssetImpairmentCharges) |
| Table | Schedule of Restructuring and Related Costs [Table] |
| Reporting Entity [Axis] | 0000707549 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Restructuring Cost and Reserve [Line Items] | Period [Axis] | ||||||||
|---|---|---|---|---|---|---|---|---|---|
2011-06-27 - 2012-06-24 | 2010-06-28 - 2011-06-26 | 2009-06-29 - 2010-06-27 | |||||||
| Restructuring Plan [Axis] | Restructuring Plan [Axis] | Restructuring Plan [Axis] | |||||||
| June Two Thousand Eight Plan [Member] | Restructuring Plan [Domain] | December Two Thousand Eight Plan [Member] | March Two Thousand Nine Plan [Member] | Restructuring Plan [Domain] | June Two Thousand Eight Plan [Member] | December Two Thousand Eight Plan [Member] | March Two Thousand Nine Plan [Member] | Restructuring Plan [Domain] | |
Severance and benefits | (230,000) | (43,000) | (42,000) | 92,000 | 472,000 | ||||
Facilities/Inventory | (859,000) | 11,852,000 | (2,175,000) | 19,832,000 | |||||
Abandoned assets | 587,000 | ||||||||
Total restructuring and asset impairment charges | (859,000) | 866,000 | (230,000) | 11,809,000 | 11,579,000 | (2,217,000) | 92,000 | 20,891,000 | 24,752,000 |