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Income Taxes - Avedro Net Operating Loss Carryforwards and Tax Credits (Details) - USD ($)
$ in Thousands
Nov. 21, 2019
Dec. 31, 2019
Income Taxes    
Deferred tax liabilities   $ 104,537
Federal    
Income Taxes    
Net operating loss carryforwards   355,600
Federal | Research and development credit carryforward    
Income Taxes    
Tax credit carryforwards   28,900
State    
Income Taxes    
Net operating loss carryforwards   144,000
State | Research and development credit carryforward    
Income Taxes    
Tax credit carryforwards   12,800
Tax credit subject to expiration   $ 2,900
Avedro    
Income Taxes    
Total Merger Consideration $ 437,751  
Deferred tax liabilities 75,900  
Avedro | Federal    
Income Taxes    
Net operating loss carryforwards 178,800  
Net operating loss carryforward expiring 80,200  
Avedro | Federal | Research and development credit carryforward    
Income Taxes    
Tax credit carryforwards 17,300  
Tax credit subject to expiration 14,700  
Avedro | State    
Income Taxes    
Net operating loss carryforwards 97,200  
Net operating loss carryforward expiring 36,400  
Avedro | State | Research and development credit carryforward    
Income Taxes    
Tax credit carryforwards 3,000  
Tax credit subject to expiration $ 1,500