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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Revision of Prior Period Financial Statements) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retirement and deferred compensation plan liabilities	$ (20,621)	$ (14,419)
Net Cash Provided by Operations	265,162	202,420
Proceeds from stock option exercises	66,686	49,457
Net Cash Provided by Financing Activities	$ 447,267	1,090
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retirement and deferred compensation plan liabilities		(12,525)
Net Cash Provided by Operations		204,314
Proceeds from stock option exercises		47,563
Net Cash Provided by Financing Activities		(804)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retirement and deferred compensation plan liabilities		(1,894)
Net Cash Provided by Operations		(1,894)
Proceeds from stock option exercises		1,894
Net Cash Provided by Financing Activities		$ 1,894

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Amount of increase (decrease) in obligation for pension and other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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