Supplemental Balance Sheet Information - Schedule of Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions		Jun. 30, 2016	Dec. 31, 2015
Accounts Receivable:
Accounts receivable		$ 7.5	$ 10.4
Less reserves and allowances	[1]	(0.5)	(0.6)
Accounts receivable, net		7.0	9.8
Inventories:
Finished goods		0.2	0.9
Raw materials and supplies		5.2	7.2
Total inventories		5.4	8.1
Property, Plant and Equipment:
Property, plant and equipment		12.5	12.7
Less accumulated depreciation		(9.4)	(8.5)
Property, plant and equipment, net		$ 3.1	$ 4.2

[1] Accounts receivable reserves and allowances include estimated amounts for customer returns, discounts on payment terms and uncollectible accounts.