INCOME TAXES (Deferred Tax Assets and Liabilties) (Detail) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Operating lease liabilities	$ 35,299,000
Inventories, net	15,220,000	$ 14,154,000
Net operating loss	8,328,000	9,868,000
Environmental reserves	8,239,000	8,613,000
Incentive compensation	8,130,000	8,472,000
Pension and other postretirement liabilities	5,029,000	35,656,000
Capital loss carryover	955,000	6,972,000
Other	33,002,000	27,795,000
Total deferred tax assets	114,202,000	111,530,000
Deferred tax liabilities:
Goodwill	77,620,000	70,850,000
Operating lease right-of-use assets, net	33,915,000
Intangible Assets	30,954,000	33,600,000
Depreciation	25,562,000	24,983,000
Withholding Taxes	13,097,000	10,300,000
Other	7,524,000	5,345,000
Total deferred tax liabilities	188,672,000	145,078,000
Valuation allowance	3,386,000	11,646,000
Deferred Tax Liabilities, Net	$ 77,856,000	$ 45,194,000