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Stock-based Compensation - Unrecognized Compensation Expense (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 25,027
Stock options  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 5,829
Weighted Average Period 2 years 2 months 19 days
Performance-based stock options  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 75
Weighted Average Period 5 days
RSUs  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount $ 12,767
Weighted Average Period 2 years 6 months 29 days
LSUs  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]  
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount $ 6,356
Weighted Average Period 2 years 2 months 1 day