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Noncash Investing Activities
3 Months Ended
Mar. 31, 2022
Supplemental Cash Flow Elements [Abstract]  
Noncash Investing Activities

18.

NONCASH INVESTING ACTIVITIES

Noncash investing activities included liabilities (accounts payable) incurred for property, plant and equipment expenditures of approximately $37,154,000 and $13,822,000 that were unpaid at March 31, 2022 and 2021, respectively.