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Stockholders' Equity (Details) - USD ($)
3 Months Ended
May 01, 2020
Dec. 09, 2019
Mar. 29, 2019
Mar. 31, 2019
Mar. 31, 2020
Dec. 31, 2019
Class of Warrant or Right [Line Items]            
Common stock, par value (in usd per share)         $ 0.01 $ 0.01
Public Offering            
Class of Warrant or Right [Line Items]            
Sale of stock (in shares)   16,428,572        
Shares issued, price per share (in usd per share)   $ 17.50        
Over-Allotment Option            
Class of Warrant or Right [Line Items]            
Proceeds from sale of stock   $ 273,000,000.0        
Proceeds from sale of stock, gross   $ 287,500,000        
ATM Agreement            
Class of Warrant or Right [Line Items]            
Sale of stock (in shares)     4,432,416      
Proceeds from sale of stock     $ 71,600,000      
Sale of stock, consideration received on transaction     $ 150,000,000.0      
Percentage of payments for stock issuance costs     3.00%      
Sales Agreement            
Class of Warrant or Right [Line Items]            
Value of non-cash consideration received (in shares)       84,896    
Subsequent Event | Public Offering            
Class of Warrant or Right [Line Items]            
Sale of stock (in shares) 16,947,389          
Shares issued, price per share (in usd per share) $ 28.50          
Subsequent Event | Over-Allotment Option            
Class of Warrant or Right [Line Items]            
Proceeds from sale of stock $ 464,600,000          
Proceeds from sale of stock, gross $ 483,000,000.0          
Weighted Average | ATM Agreement            
Class of Warrant or Right [Line Items]            
Shares issued, price per share (in usd per share)     $ 16.40