INCOME TAXES - Deferred (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Accrued expenses	$ 47,683	$ 40,502
Operating lease liabilities	30,590	33,933
Supplemental pension liabilities	97	103
Multiemployer pension fund withdrawal	5,247	5,409
Postretirement liabilities other than pensions	4,441	4,871
Share-based compensation	6,755	5,827
Federal and state net operating loss carryforwards	1,652	1,353
Revenue recognition	2,778	1,426
Other	266	1,297
Total deferred tax assets	99,509	94,721
Valuation allowance	(2,196)	(1,284)
Total deferred tax assets, net of valuation allowance	97,313	93,437
Deferred tax liabilities:
Amortization, depreciation, and basis differences for property, plant and equipment, and other long-lived assets	114,999	113,092
Operating lease right-of-use assets	29,403	32,923
Intangibles	6,966	7,520
Prepaid expenses	5,368	6,151
Total deferred tax liabilities	156,736	159,686
Net deferred tax liabilities	$ (59,423)	$ (66,249)