SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES, Receivables and Credit Risk (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Changes in allowance [Roll Forward]
Balance at beginning of year		$ 9,364	$ 8,713	$ 8,798
Charged to cost and expenses		180	2,014	2,365
Charged to other accounts	[1]	(17)	1,255	1,140
Deductions	[2]	(1,367)	(2,618)	(3,590)
Balance at end of year		$ 8,160	$ 9,364	$ 8,713

[1] Includes allowance for doubtful accounts from acquisitions and divestiture

[2] Uncollectible accounts written off, net of recoveries