XML 82 R62.htm IDEA: XBRL DOCUMENT
v3.20.4

Stockholders' Equity - Breakdown of Options Outstanding (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 $ / shares shares
$10.05 – $195.91 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding (shares) | shares | 2,561,822
Weighted average remaining life in years | 6 years 1 month 2 days
Weighted average exercise price (USD per share) | $ 85.59
Options exercisable (shares) | shares | 1,611,830
Weighted average exercise price (USD per share) | $ 76.05
$10.05-$14.47 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 10.05
Upper range of exercise prices (USD per share) | $ 14.47
Options outstanding (shares) | shares | 284,184
Weighted average remaining life in years | 10 months 9 days
Weighted average exercise price (USD per share) | $ 13.08
Options exercisable (shares) | shares | 270,184
Weighted average exercise price (USD per share) | $ 13.00
$21.92-$56.26 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 21.92
Upper range of exercise prices (USD per share) | $ 56.26
Options outstanding (shares) | shares | 344,629
Weighted average remaining life in years | 2 years 10 months 17 days
Weighted average exercise price (USD per share) | $ 35.34
Options exercisable (shares) | shares | 344,629
Weighted average exercise price (USD per share) | $ 35.34
$63.58-$74.42 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 63.58
Upper range of exercise prices (USD per share) | $ 74.42
Options outstanding (shares) | shares | 307,356
Weighted average remaining life in years | 5 years 2 months 12 days
Weighted average exercise price (USD per share) | $ 71.96
Options exercisable (shares) | shares | 220,650
Weighted average exercise price (USD per share) | $ 73.41
$82.90-$95.35 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 82.90
Upper range of exercise prices (USD per share) | $ 95.35
Options outstanding (shares) | shares | 185,033
Weighted average remaining life in years | 6 years 2 months 23 days
Weighted average exercise price (USD per share) | $ 86.22
Options exercisable (shares) | shares | 140,400
Weighted average exercise price (USD per share) | $ 86.32
95.68 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 95.68
Upper range of exercise prices (USD per share) | $ 95.68
Options outstanding (shares) | shares | 305,106
Weighted average remaining life in years | 9 years 1 month 13 days
Weighted average exercise price (USD per share) | $ 95.68
Options exercisable (shares) | shares | 63,059
Weighted average exercise price (USD per share) | $ 95.68
97.92 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 97.92
Upper range of exercise prices (USD per share) | $ 97.92
Options outstanding (shares) | shares | 4,976
Weighted average remaining life in years | 5 years 7 days
Weighted average exercise price (USD per share) | $ 97.92
Options exercisable (shares) | shares | 4,976
Weighted average exercise price (USD per share) | $ 97.92
98.2 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 98.20
Upper range of exercise prices (USD per share) | $ 98.20
Options outstanding (shares) | shares | 270,850
Weighted average remaining life in years | 9 years 3 months 3 days
Weighted average exercise price (USD per share) | $ 98.20
Options exercisable (shares) | shares | 0
Weighted average exercise price (USD per share) | $ 98.20
$100.02-$113.76 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 100.02
Upper range of exercise prices (USD per share) | $ 113.76
Options outstanding (shares) | shares | 257,914
Weighted average remaining life in years | 6 years 8 months 8 days
Weighted average exercise price (USD per share) | $ 104.12
Options exercisable (shares) | shares | 220,092
Weighted average exercise price (USD per share) | $ 103.96
117.58 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 117.58
Upper range of exercise prices (USD per share) | $ 117.58
Options outstanding (shares) | shares | 19,744
Weighted average remaining life in years | 9 years 5 months 8 days
Weighted average exercise price (USD per share) | $ 117.58
Options exercisable (shares) | shares | 0
Weighted average exercise price (USD per share) | $ 117.58
$117.97-$195.91 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Lower range of exercise prices (USD per share) | 117.97
Upper range of exercise prices (USD per share) | $ 195.91
Options outstanding (shares) | shares | 582,030
Weighted average remaining life in years | 7 years 6 months 21 days
Weighted average exercise price (USD per share) | $ 137.18
Options exercisable (shares) | shares | 347,840
Weighted average exercise price (USD per share) | $ 141.38

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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&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://fasb.org/us-gaap/role/ref/legacyRef -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=120381028&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&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://fasb.org/us-gaap/role/ref/legacyRef -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=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&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=lgnd_ExercisePriceRangeElevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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

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

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

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

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