GOODWILL AND INTANGIBLES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) Trademark	Dec. 31, 2015 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 9.2	$ 3.9
Additions associated with acquisition	0.0	5.6
Impairment	(0.4)	0.0
Foreign currency translation	0.0	(0.3)
Balance at end of period	$ 8.8	9.2
Number of trademarks considered an indefinite-lived intangible | Trademark	1
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 12.2	6.5
Accumulated Amortization	4.4	3.3
Total	$ 7.8	$ 3.2
Weighted Average Useful Life	5 years 3 months 18 days	7 years 3 months 18 days
Amortization expense	$ 1.1
Aggregate amortization expense for intangibles [Abstract]
2017	1.7
2018	1.6
2019	1.5
2020 and after	3.0
Total	7.8	$ 3.2
Trademark [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible	0.7
Client Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5.5	5.5
Accumulated Amortization	3.4	3.0
Total	$ 2.1	$ 2.5
Weighted Average Useful Life	7 years 7 months 6 days	8 years 3 months 18 days
Aggregate amortization expense for intangibles [Abstract]
Total	$ 2.1	$ 2.5
Client Lists [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	5 years	5 years
Client Lists [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	10 years	10 years
Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 0.8	$ 0.8
Accumulated Amortization	0.3	0.1
Total	$ 0.5	$ 0.7
Weighted Average Useful Life	4 years 1 month 6 days	4 years 8 months 12 days
Aggregate amortization expense for intangibles [Abstract]
Total	$ 0.5	$ 0.7
Leases [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	3 years	3 years
Leases [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	6 years	6 years
Domain Name [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	5 years
Gross Carrying Amount	$ 3.4
Accumulated Amortization	0.2
Total	$ 3.2
Weighted Average Useful Life	4 years 9 months 18 days
Aggregate amortization expense for intangibles [Abstract]
Total	$ 3.2
Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	5 years	5 years
Gross Carrying Amount	$ 2.5	$ 0.2
Accumulated Amortization	0.5	0.2
Total	$ 2.0	$ 0.0
Weighted Average Useful Life	4 years	0 years
Aggregate amortization expense for intangibles [Abstract]
Total	$ 2.0	$ 0.0
Trademarks and Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Total	5.7
Aggregate amortization expense for intangibles [Abstract]
Total	$ 5.7