Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

ACQUISITIONS (Narrative) (Details) $ in Thousands, TRY in Millions		3 Months Ended				12 Months Ended
	Jan. 02, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2017 TRY	Apr. 04, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 02, 2016 USD ($)	Jan. 03, 2015 USD ($)	Apr. 09, 2017	Dec. 29, 2012 USD ($)
Business Acquisition
Business combination percentage of voting interests acquired	100.00%
Ownership percentage after acquisition			100.00%							50.00%
Adjustments to Impo redemption value			$ 200	TRY 0.6		$ (27)	$ 1,002	$ 760
Noncontrolling interest		$ 1,964				1,964	1,643
Business combination consideration transferred	$ 9,000
Payments for Repurchase of Redeemable Noncontrolling Interest			$ 5,000	TRY 17.0		5,047	0	0
Realized gain on share purchase liability						0	0	2,723
Goodwill		$ 236,810				236,810	199,609	199,800
Business combination, acquisition related costs						$ 600	$ 100	$ 200
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage		100.00%				100.00%
Impo
Business Acquisition
Business combination percentage of voting interests acquired			10.00%
Headwater Companies
Business Acquisition
Business combination consideration transferred			$ 57,400						$ 3,000
Intangible assets			5,700
Acquired finite-lived Intangible asset, weighted average useful life (in years)		15 years
Goodwill			33,900
Business Acquisition, Goodwill, Expected Tax Deductible Amount			7,800
Less: Fair value of original equity interest			20,600
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain			$ 5,200
Pioneer Pump Holdings Inc
Business Acquisition
Business combination percentage of voting interests acquired					29.50%
Ownership percentage after acquisition					100.00%
Ownership percentage by noncontrolling owners											29.50%
Noncontrolling interest											$ 22,900
Business combination consideration transferred					$ 20,200
Other Income, Net \| Pioneer Pump Holdings Inc
Business Acquisition
Realized gain on share purchase liability					$ 2,700