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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Oct. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Line Items]        
Federal statutory rate   21.00% 21.00% 35.00%
Tax effect of pre-Separation earnings   $ 0 $ 0 $ (16,210)
Write-off of permanent outside basis difference resulting from change in tax status $ 51,000 0 0 50,687
Effect of U.S. federal tax rate change   0 0 80,298
Deferred income tax liabilities, Net       $ 246,000
Deferred tax assets, net operating loss carryforwards, federal   7,100    
Deferred tax assets, net operating loss carryforwards, state   1,500    
Unrecognized tax benefits, if recognized, would affect annual tax rate   1,500 $ 600  
Federal        
Income Tax Disclosure [Line Items]        
Deferred tax assets, tax credit carryforwards research and development   $ 1,800    
Tax credit carryforward, expiration period   20 years    
State        
Income Tax Disclosure [Line Items]        
Deferred tax assets, tax credit carryforwards research and development   $ 800    
Tax credit carryforward, expiration period   5 years