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Stock Based Compensation - Schedule of Company Compensation Expense for the ESOP (Detail) - shares
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Allocated 35,772 23,848  
Committed to be allocated 2,981 11,924 2,981
Unallocated 199,720 202,701  
Total 238,473 238,473