Quarterly report pursuant to Section 13 or 15(d)

Uncategorized Items - lgnd-20190331.htm

v3.19.1
Label Element Value
Accounting Standards Update 2016-01 [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption $ 0
Accounting Standards Update 2016-01 [Member] | AOCI Attributable to Parent [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (2,662,000)
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption 2,662,000
Accounting Standards Update 2014-09 [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption 25,583,000
Accounting Standards Update 2014-09 [Member] | Retained Earnings [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption $ 25,583,000