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EMPLOYEE BENEFIT PLANS (Detail) - USD ($) shares in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Employee Stock Purchase Plan [Line Items] |  |  |  |
Employer contributions vesting period | 2 years |  |  |
Employer contributions | $ 3,558,000 | $ 2,811,000 | $ 2,357,000 |
Multiemployer pension plan withdrawal obligation | 1,586,000 |  |  |
Contingent liability term |  |  |  | 17 years
Multiemployer pension plan withdrawal obligation, undiscounted |  |  |  | $ 4,224,000
Estimated accumulated benefit obligation as complete withdrawal |  |  |  | $ 18,511,000
Pension Plan |  |  |  |
Employee Stock Purchase Plan [Line Items] |  |  |  |
Contributions by employer | $ 442,000 | $ 398,000 | $ 390,000 |
Hourly employees | First matching contribution |  |  |  |
Employee Stock Purchase Plan [Line Items] |  |  |  |
Employer matching contribution, percent of match | 100.00% |  |  |
Employer matching contribution, percent of employees' annual income | 1.00% |  |  |
Hourly employees | Next matching contribution |  |  |  |
Employee Stock Purchase Plan [Line Items] |  |  |  |
Employer matching contribution, percent of match | 50.00% |  |  |
Employer matching contribution, percent of employees' annual income | 3.00% |  |  |
Salary employees |  |  |  |
Employee Stock Purchase Plan [Line Items] |  |  |  |
Employer matching contribution, percent of match | 50.00% |  |  |
Employer matching contribution, percent of employees' annual income | 2.00% |  |  |
Maximum annual contributions per employee | $ 1,500 |  |  |
Class A Common Stock |  |  |  |
Employee Stock Purchase Plan [Line Items] |  |  |  |
Discount rate | 15.00% |  |  |
Stock issued under stock purchase plan (in shares) | 22 | 20 | 20 |
Stock available for distribution under stock purchase plan (in shares) | 32 |  |  |

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