ACCRUED EXPENSES AND OTHER LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accrued Expenses
Salaries and wages	$ 124,163	$ 149,629
Deferred compensation	5,988	4,524
Pension benefits	3,767	3,754
Other postretirement benefits	1,393	1,387
Other employee benefits	17,220	28,370
Insurance obligations	161,004	139,314
Operating taxes	110,044	100,399
Income taxes	7,290	3,491
Interest	43,304	39,522
Deposits, mainly from customers	80,722	80,401
Operating lease liabilities	72,888	73,422
Deferred revenue	164,963	160,902
Restructuring liabilities	2,157	7,595
Other	54,390	55,029
Total	849,293	847,739
Non-Current Liabilities
Salaries and wages	0	0
Deferred compensation	60,479	55,279
Pension benefits	457,697	456,979
Other postretirement benefits	18,565	18,097
Other employee benefits	0	0
Insurance obligations	275,841	247,552
Operating taxes	0	0
Income taxes	18,368	18,477
Interest	0	0
Deposits, mainly from customers	3,116	3,390
Operating lease liabilities	144,834	137,384
Deferred revenue	425,270	421,176
Restructuring liabilities	0	0
Other	47,245	44,291
Total	1,451,415	1,402,625
Total
Salaries and wages	124,163	149,629
Deferred compensation	66,467	59,803
Pension benefits	461,464	460,733
Other postretirement benefits	19,958	19,484
Other employee benefits	17,220	28,370
Insurance obligations	436,845	386,866
Operating taxes	110,044	100,399
Income taxes	25,658	21,968
Interest	43,304	39,522
Deposits, mainly from customers	83,838	83,791
Operating lease liabilities	217,722	210,806
Deferred revenue	590,233	582,078
Restructuring liabilities	2,157	7,595
Other	101,635	99,320
Total	$ 2,300,708	$ 2,250,364