SPECIAL CHARGES, NET (Details) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) Store	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Special charges		$ 5.9	$ 27.9	$ 15.9
Proceeds from the sale of fixed assets		(0.6)	(1.4)	(1.0)
NATG and EMEA Technology Products Group [Member]
Restructuring Cost and Reserve [Line Items]
Balance beginning of period		19.3	4.7
Charged to expense		19.0	38.9
Paid or otherwise settled		(17.8)	(24.3)
Balance end of period		20.5	19.3	4.7
Special charges		15.4
NATG and EMEA Technology Products Group [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		5.9
NATG and EMEA Technology Products Group [Member] | Discontinued Operations [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		9.5
EMEA Technology Products Group [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		3.7
EMEA Technology Products Group [Member] | United Kingdom [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		2.0
EMEA Technology Products Group [Member] | Germany [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		1.7
Lease termination costs		1.0
Benefit related to rent accruals		(0.3)
Charges related to write off of inventory and fixed assets		0.1
NATG [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		11.7
Lease termination costs		10.9
Benefit related to rent accruals		$ (3.3)
Number of retail stores closed | Store		2
Proceeds from partial restitution settlement	$ (1.3)	$ (1.3)
Settlement of vendor obligations		(1.1)
Proceeds from the sale of fixed assets		(0.5)
NATG [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Additional wind down costs		1.0
NATG [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Additional wind down costs		5.0
NATG [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		2.2
NATG [Member] | Discontinued Operations [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		9.5
NATG [Member] | Consumer Customer Lists [Member]
Restructuring Cost and Reserve [Line Items]
Cash received for consumer customer list		(0.4)
Workforce Reductions and Personnel Costs [Member] | EMEA Technology Products Group [Member]
Restructuring Cost and Reserve [Line Items]
Balance beginning of period		0.3	4.7
Charged to expense		0.0	0.4
Paid or otherwise settled		(0.3)	(4.8)
Balance end of period		0.0	0.3	4.7
Lease Liabilities and Other Costs [Member] | EMEA Technology Products Group [Member]
Restructuring Cost and Reserve [Line Items]
Balance beginning of period		0.0
Charged to expense		1.9
Paid or otherwise settled		(0.7)
Balance end of period		1.2	0.0
Workforce Reductions [Member] | NATG [Member]
Restructuring Cost and Reserve [Line Items]
Balance beginning of period		2.7	0.0
Charged to expense		0.2	5.5
Paid or otherwise settled		(2.9)	(2.8)
Balance end of period		0.0	2.7	0.0
Lease Liabilities and Other Exit Costs [Member] | NATG [Member]
Restructuring Cost and Reserve [Line Items]
Balance beginning of period		16.3	0.0
Charged to expense		16.9	33.0
Paid or otherwise settled		(13.9)	(16.7)
Balance end of period		19.3	$ 16.3	$ 0.0
Professional Costs [Member] | EMEA Technology Products Group [Member] | Germany [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		0.6
Professional Costs [Member] | NATG [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		1.3
Consulting Expenses [Member] | NATG [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		0.6
Severance [Member] | NATG [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		0.2
Additional Lease Termination Costs of Previously Exited Retail Stores [Member] | NATG [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		2.0
Benefit related to rent accruals		$ (0.1)