XML 73 R56.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Stockholders' Equity - Summary of Stock Options Outstanding (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2016 $ / shares shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 9,256,506
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 5 years 6 months 7 days
Options Exercisable Number of Shares of common stock subject to options | shares | 6,034,569
Options Exercisable Weighted Average Exercise Price | $ 8.54
Range 1 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 2.55
Upper Range of Exercise Price | $ 3.45
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 1,226,700
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 5 years 6 months 7 days
Options Exercisable Number of Shares of common stock subject to options | shares | 681,700
Options Exercisable Weighted Average Exercise Price | $ 3.34
Range 2 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 3.55
Upper Range of Exercise Price | $ 5.35
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 1,103,291
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 4 years 10 months 10 days
Options Exercisable Number of Shares of common stock subject to options | shares | 755,291
Options Exercisable Weighted Average Exercise Price | $ 5.32
Range 3 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 5.36
Upper Range of Exercise Price | $ 5.70
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 1,545,209
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 4 years 15 days
Options Exercisable Number of Shares of common stock subject to options | shares | 1,481,209
Options Exercisable Weighted Average Exercise Price | $ 5.54
Range 4 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 5.72
Upper Range of Exercise Price | $ 7.07
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 1,295,575
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 6 years 7 months 28 days
Options Exercisable Number of Shares of common stock subject to options | shares | 417,616
Options Exercisable Weighted Average Exercise Price | $ 6.06
Range 5 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 7.24
Upper Range of Exercise Price | $ 9.40
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 165,596
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 7 years
Options Exercisable Number of Shares of common stock subject to options | shares | 93,517
Options Exercisable Weighted Average Exercise Price | $ 8.12
Range 6 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 9.41
Upper Range of Exercise Price | $ 9.41
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 1,018,710
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 8 years 1 month 21 days
Options Exercisable Number of Shares of common stock subject to options | shares | 349,418
Options Exercisable Weighted Average Exercise Price | $ 9.41
Range 7 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 9.45
Upper Range of Exercise Price | $ 12.80
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 931,334
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 5 years 9 months
Options Exercisable Number of Shares of common stock subject to options | shares | 743,227
Options Exercisable Weighted Average Exercise Price | $ 11.89
Range 8 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 12.96
Upper Range of Exercise Price | $ 14.07
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 1,398,591
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 4 years 11 months 19 days
Options Exercisable Number of Shares of common stock subject to options | shares | 1,032,356
Options Exercisable Weighted Average Exercise Price | $ 14.00
Range 9 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 14.15
Upper Range of Exercise Price | $ 19.51
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 559,000
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 4 years 15 days
Options Exercisable Number of Shares of common stock subject to options | shares | 471,642
Options Exercisable Weighted Average Exercise Price | $ 14.78
Range 10 [Member] |
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] |
Lower Range of Exercise Price | 19.80
Upper Range of Exercise Price | $ 19.80
Options Outstanding and Exercisable Number of Shares of common stock subject to options | shares | 12,500
Options Outstanding and Exercisable Weighted Average Remaining Contractual Life (In years) | 7 years 2 months 23 days
Options Exercisable Number of Shares of common stock subject to options | shares | 8,593
Options Exercisable Weighted Average Exercise Price | $ 19.80

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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeSevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=sgmo_RangeTenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |