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CONTINGENT LIABILITIES AND OTHER MATTERS (Details 3) ZAR in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017 USD ($)	Oct. 01, 2016 USD ($)	Jul. 02, 2016 USD ($)	Sep. 30, 2017 USD ($)	Oct. 01, 2016 USD ($)	Sep. 30, 2017 ZAR	Dec. 31, 2016 USD ($)	Jul. 06, 2016 ZAR
Noncontrolling Interest [Line Items]
Adjustment related to redeemable noncontrolling interest	$ 0.0	$ 0.0		$ 0.0	$ 18.1
South African Subsidiary, DBT Technologies | BEE Partner | South Africa
Noncontrolling Interest [Line Items]
Amount due from BEE Partner under promissory note | ZAR								ZAR 30.3
South African Subsidiary, DBT Technologies | BEE Partner | South Africa | Put Option
Noncontrolling Interest [Line Items]
Amount entitled for Put Option exercise | ZAR								ZAR 287.3
Net redemption value	$ 19.0			$ 19.0		ZAR 257.0	$ 18.5
Amount reclassified from noncontrolling interests to paid in capital			$ 38.7
Adjustment related to redeemable noncontrolling interest			$ 18.1
South African Subsidiary, DBT Technologies | BEE Partner | South Africa | Put Option
Noncontrolling Interest [Line Items]
Non-controlling interest percentage	25.10%			25.10%		25.10%

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