XML 76 R54.htm IDEA: XBRL DOCUMENT
v3.20.4

Commitments and Contingencies - Non-cancelable Material Contractual Commitments (Detail) $ in Thousands | Dec. 31, 2020 USD ($)
--- | ---
Other Commitments [Line Items] |
Contractual obligation | $ 21,507
Brammer Bio MA |
Other Commitments [Line Items] |
Contractual obligation | 7,736
Lonza Netherlands, B.V. |
Other Commitments [Line Items] |
Contractual obligation | $ 13,771

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=sgmo_BrammerBioMAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=sgmo_LonzaNetherlandsBVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |