Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail)

v3.22.4
Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income Loss [Line Items]      
Net gain (loss) on sales of securities   $ (499,000) $ 15,712,000
Net unrealized gains (losses) recorded in comprehensive income   (100,000) 15,300,000
sale of securities $ 0 55,884,000 495,566,000
Unrealized Gains and Losses on Available for Sale Securities | Reclassification out of Accumulated Other Comprehensive Income      
Accumulated Other Comprehensive Income Loss [Line Items]      
Net gain (loss) on sales of securities   $ 500,000 $ 15,700,000