Employee Benefit Plans (Stock-Based Compensation Expense) (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Share-Based Payment Arrangement, Expense | $ 18,322 | $ 12,753 | $ 13,918 |
| Income tax benefit | 2,969 | 1,713 | 2,142 |
| Non-Vested Stock Awards/ Stock Units Outstanding [Member] | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Non-vested stock awards/stock units | 13,162 | 9,977 | 10,240 |
| Director deferred stock units outstanding [Member] | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Non-vested stock awards/stock units | 720 | 700 | 770 |
| Performance Shares [Member] | |||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | |||
| Non-vested stock awards/stock units | $ 4,440 | $ 2,076 | $ 2,908 |