Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Option-Based Compensation Expenses (Details)

v3.19.3
Stock-Based Compensation - Schedule of Option-Based Compensation Expenses (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Stock-based compensation expense included in operating expense $ 1,826,000 $ 2,499,000 $ 5,607,000 $ 7,072,000
Tax benefit
Stock-based compensation expense, net of tax 1,826,000 2,499,000 5,607,000 7,072,000
Research And Development Expense [Member]        
Stock-based compensation expense included in operating expense 972,000 1,012,000 3,013,000 2,756,000
Selling General And Administrative Expenses [Member]        
Stock-based compensation expense included in operating expense 854,000 1,487,000 2,594,000 4,316,000
Restricted Stock [Member]        
Stock-based compensation expense included in operating expense 98,000 348,000 172,000 516,000
Tax benefit
Stock-based compensation expense, net of tax 98,000 348,000 172,000 516,000
Restricted Stock [Member] | Research And Development Expense [Member]        
Stock-based compensation expense included in operating expense 66,000 66,000 516,000
Restricted Stock [Member] | Selling General And Administrative Expenses [Member]        
Stock-based compensation expense included in operating expense $ 32,000 $ 282,000 $ 172,000