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Employee Benefit Plans - Schedule of net defined benefit plan costs (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Retirement Benefits [Abstract]    
Service costs $ 3,760 $ 3,683
Interest costs 1,736 1,478
Amortization of actuarial loss 167 339
Expected return on plan assets (1,261) (1,536)
Net defined benefit plan costs $ 4,402 $ 3,964