SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Changes in Allowance for Uncollectible Accounts Receivables

Changes in this allowance for 2019, 2018 and 2017 were as follows (in thousands):

	Years Ended December 31,
	2019				2018				2017
Balance at beginning of year	10,126				9,015				8,160
Charged to costs and expenses	139				2,368				3,367
Charged to other accounts	79			(3)	(86		)	(2)	22			(3)
Deductions	(1,415		)	(1)	(1,171		)	(1)	(2,534		)	(1)
Balance at end of year	$	8,929			$	10,126			$	9,015

⁽¹⁾ Uncollectible accounts written off, net of recoveries

⁽²⁾ Includes allowance for doubtful accounts from acquisitions and divestiture

⁽³⁾ Primarily due to translation adjustments

Schedule of Principal Estimated Useful Lives of Property and Equipment

The principal estimated useful lives used in determining depreciation are as follows:

Buildings	20-39 years
Building improvements	10-20 years
Furniture, fixtures and equipment	3-20 years
Leasehold improvements	Shorter of estimated useful life or related lease term