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Stock-Based Compensation - Unrecognized Compensation Expense is to be Recognized (Detail)
$ in Thousands
Jun. 30, 2020
USD ($)
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense $ 5,579
Remainder of 2020  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 1,865
2021  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 2,327
2022  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 874
2023  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 513
2024  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense $ 0