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Legal Proceedings, Commitments and Contingencies (Details) (Pending Litigation [Member])
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Jun. 30, 2012
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Apr. 18, 2012
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|---|---|---|
| Loss Contingencies [Line Items] | ||
| Pending claims, number | 77 | |
| Number of pending litigation | 77 | |
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Hedrick et al. v. Genentech, Inc [Member]
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| Loss Contingencies [Line Items] | ||
| Number treatments resulting in injuries | 3 | |
| Pending claims, number | 1 | |
| Number of pending litigation | 1 | |
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Sylvia, et al. v. Genentech [Member]
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| Loss Contingencies [Line Items] | ||
| Number of complaints filed | 2 | |
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Muniz v. Genentech [Member]
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| Loss Contingencies [Line Items] | ||
| Number of complaints filed | 4 |