Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Summary of NQO Grants (Detail)

v3.20.4
Equity-Based Compensation - Summary of NQO Grants (Detail) - Non-Qualified Stock Options - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Beginning Balance, Units 166,140 105,398
Ending Balance, Units 252,904 166,140
Fair Value per unit   $ 13.97
Minimum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Fair Value per unit $ 13.97  
Fair Value per unit 10.18 13.97
Maximum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Fair Value per unit 14.54  
Fair Value per unit $ 14.54 $ 14.54
Granted in May 2019    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Granted, Units   60,742
Fair Value per unit, Granted   $ 14.54
Granted in May 2020    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Granted, Units 86,764  
Fair Value per unit, Granted $ 10.18