ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2020

Accrued Liabilities and Other Liabilities [Abstract]

Schedule of Accrued Expenses and Other Liabilities

	December 31, 2020						December 31, 2019
	Accrued Expenses		Non-Current Liabilities		Total		Accrued Expenses		Non-Current Liabilities		Total
	(In thousands)
Salaries and wages	$	158,122	$	—	$	158,122	$	126,119	$	—	$	126,119
Deferred compensation	5,117		77,823		82,940		6,436		65,006		71,442
Pension benefits	3,776		265,178		268,954		3,863		413,829		417,692
Other postretirement benefits	1,381		20,245		21,626		1,478		20,187		21,665
Other employee benefits	20,599		—		20,599		21,577		—		21,577
Insurance obligations (1)	169,936		292,298		462,234		163,763		285,838		449,601
Operating taxes (2)	164,293		41,687		205,980		116,003		—		116,003
Income taxes	4,588		15,598		20,186		2,873		17,484		20,357
Interest	38,887		—		38,887		46,032		—		46,032
Deposits, mainly from customers	79,840		3,014		82,854		82,573		3,065		85,638
Operating lease liabilities	78,785		186,429		265,214		72,285		151,361		223,646
Deferred revenue (3)	183,474		446,265		629,739		165,205		438,482		603,687
Restructuring liabilities (4)	7,683		—		7,683		6,765		—		6,765
Other	72,697		55,324		128,021		61,105		46,751		107,856
Total	$	989,178	$	1,403,861	$	2,393,039	$	876,077	$	1,442,003	$	2,318,080

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(1) Insurance obligations are primarily comprised of self-insured claim liabilities.

(2) Includes the deferral of certain payroll taxes allowed under the CARES Act.

(3) Refer to Note 3, "Revenue", for further information.

(4) Refer to Note 20, "Other Items Impacting Comparability", for further information on restructuring activities during 2020. The majority of the balance remaining in restructuring liabilities is expected to be paid by mid-2021.