Basis of Presentation (Details) $ in Millions		3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 01, 2015 Store	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2015 Store
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss included in discontinued operations		$ (5.5)	$ (9.7)	$ (34.3)	$ (28.5)
Net sales		313.0	297.7	615.5	584.5
Net income form continuing operations		19.3	2.3	$ 29.6	3.8
SARL Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of residual equity position retained				5.00%
Vendor guarantees, remaining balance		0.6		$ 0.6
Net sales included in discontinued operations		0.0	123.1	117.0	266.1
Net loss included in discontinued operations		1.3	4.3	28.2	6.9
Continuing Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reclassification of component of cost of sales to selling, distribution and administrative expenses		10.8	10.1	21.8	19.4
Rebate Processing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales			0.9		1.9
Net income form continuing operations			0.6		1.0
NATG [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales included in discontinued operations		0.0	(0.1)	0.0	12.0
Net loss included in discontinued operations		4.2	5.4	6.1	21.6
Number of remaining stores | Store	3
Number of retail stores closed | Store						31
Net income form continuing operations		0.4	0.6	0.4	2.4
Financial obligations related to leased facilities		61.0		61.0
Reserve for lease obligations		19.4		19.4
Additional reserves for leased facilities		3.4		3.4
NATG [Member] | Continuing Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		0.0	0.0	0.0	0.0
Additional reserves for leased facilities		0.2		0.2
NATG [Member] | Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Additional reserves for leased facilities		3.2		3.2
Misco Germany [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income form continuing operations		0.1	0.8	0.2	1.8
Misco Germany [Member] | Continuing Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		$ 0.0	$ 11.3	$ 0.0	$ 26.4