ACCOUNTS PAYABLE, ACCRUED AND OTHER LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accounts payable, principally trade	$ 243,742	$ 192,739
Accrued employee compensation costs	177,144	163,839
Customer deposits and other unearned income	87,052	86,820
Other accrued liabilities	154,525	129,630
Accounts payable, accrued and other liabilities	$ 662,463	$ 573,028	$ 545,707	$ 525,199