XML 30 R18.htm IDEA: XBRL DOCUMENT
v3.20.2

ORGANIZATION, BASIS OF PRESENTATION, AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Accounting Policies [Abstract] |
Schedule of Revenue from Strategic Partnering Collaboration Agreements and Research Activity Grants as a Percentage of Total Revenues | Revenues from major collaboration agreements and research activity grants as a percentage of total revenues were as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Pfizer | 68 | % |  | 16 | % |  | 51 | % |  | 11 | %
Biogen | 16 | % |  | — |  |  | 19 | % |  | — |
Kite Pharma, Inc. | 13 | % |  | 40 | % |  | 24 | % |  | 55 | %
Sanofi | 3 | % |  | 40 | % |  | 4 | % |  | 29 | %
Schedule of Cash and Cash Equivalents | A reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets to the amounts reported within the accompanying Condensed Consolidated Statements of Cash Flows was as follows (in thousands):
| September 30, 2020 |  | December 31, 2019 |  | September 30, 2019 |  | December 31, 2018
Cash and cash equivalents | $ | 259,393 |  |  | $ | 80,428 |  |  | $ | 114,291 |  |  | $ | 140,418 |
Current restricted cash | — |  |  | — |  |  | 2,000 |  |  | — |
Non-current restricted cash | 1,500 |  |  | 1,500 |  |  | 1,500 |  |  | 3,500 |
Cash, cash equivalents and restricted cash as reported within the accompanying Condensed Consolidated Statements of Cash Flows | $ | 260,893 |  |  | $ | 81,928 |  |  | $ | 117,791 |  |  | $ | 143,918 |
Restrictions on Cash and Cash Equivalents | A reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets to the amounts reported within the accompanying Condensed Consolidated Statements of Cash Flows was as follows (in thousands):
| September 30, 2020 |  | December 31, 2019 |  | September 30, 2019 |  | December 31, 2018
Cash and cash equivalents | $ | 259,393 |  |  | $ | 80,428 |  |  | $ | 114,291 |  |  | $ | 140,418 |
Current restricted cash | — |  |  | — |  |  | 2,000 |  |  | — |
Non-current restricted cash | 1,500 |  |  | 1,500 |  |  | 1,500 |  |  | 3,500 |
Cash, cash equivalents and restricted cash as reported within the accompanying Condensed Consolidated Statements of Cash Flows | $ | 260,893 |  |  | $ | 81,928 |  |  | $ | 117,791 |  |  | $ | 143,918 |

X
- Definition Schedule Of Revenue From Strategic Partnering Collaboration Agreements And Research Activity Grants As A Percentage Of Total Revenues + References No definition available. + Details
Name: | sgmo_ScheduleOfRevenueFromStrategicPartneringCollaborationAgreementsAndResearchActivityGrantsAsAPercentageOfTotalRevenuesTableTextBlock
Namespace Prefix: | sgmo_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration