Annual report pursuant to Section 13 and 15(d)

Business Combinations - Consideration Transferred (Details)

v3.8.0.1
Business Combinations - Consideration Transferred (Details) - USD ($)
$ / shares in Units, shares in Thousands
Oct. 06, 2017
Jan. 08, 2016
Crystal    
Business Acquisition [Line Items]    
Cash paid to Crystal shareholders $ 26,877,000  
Cash payable to Crystal Shareholders 336,000  
Assumed liabilities 129,000  
Fair value of contingent consideration 8,401,000  
Cash consideration 27,200,000  
Total share consideration 10,500,000.0  
Total consideration $ 35,743,000  
OMT, Inc.    
Business Acquisition [Line Items]    
Assumed liabilities   $ 1,528,000
Cash consideration   $ 96,006,000
Actual number of shares issued (shares)   790
Multiplied by: Ligand closing share price on January 8, 2016 (USD per share)   $ 98
Total share consideration   $ 77,373,000
Total consideration   $ 173,379,000