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Stock-Based Compensation - Unrecognized Compensation Expense is to be Recognized (Detail)
$ in Thousands
Mar. 31, 2020
USD ($)
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense $ 6,573
Remainder of 2020  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 2,823
2021  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 2,349
2022  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 885
2023  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense 515
2024  
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]  
Unrecognized stock based compensation expense $ 0