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Allowance for Credit Losses - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 25, 2022
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]                  
Allowance for credit loss   $ 97,944 $ 86,062 $ 97,944 $ 86,062 $ 96,049 $ 85,376 $ 85,941 $ 91,847
Reclassification of financing receivable $ 2,956                
Cumulative effect adjustment, decrease in retained earnings   (1,042,177) (966,780) (1,042,177) (966,780) (1,109,182) (1,000,184) (942,539) (925,114)
Threshold for loan analysis   1,000   1,000          
Interest lost on nonaccrual loans   237 524 404 1,060        
Interest income on nonaccrual loans   6 159 13 176        
Retained Earnings                  
Loans and Leases Receivable Disclosure [Line Items]                  
Cumulative effect adjustment, decrease in retained earnings   (491,705) (427,575) (491,705) (427,575) (479,868) (466,959) (408,211) (381,999)
Common Stock                  
Loans and Leases Receivable Disclosure [Line Items]                  
Cumulative effect adjustment, decrease in retained earnings   $ (696,441) $ (531,038) $ (696,441) $ (531,038) $ (706,672) $ (532,244) $ (531,367) $ (530,835)