Supplemental Balance Sheet Information - Schedule of Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions		Mar. 31, 2016	Dec. 31, 2015
Accounts Receivable:
Accounts receivable		$ 7.2	$ 10.4
Less reserves and allowances	[1]	(0.6)	(0.6)
Accounts receivable, net		6.6	9.8
Inventories:
Finished goods		0.1	0.9
Raw materials and supplies		6.4	7.2
Total inventories		6.5	8.1
Property, Plant and Equipment:
Property, plant and equipment		12.7	12.7
Less accumulated depreciation		(9.2)	(8.5)
Property, plant and equipment, net		$ 3.5	$ 4.2

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