Supplemental Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Summary of expenses in statements of operations
Research and development	$ 60.7	[1]	$ 53.7	[1]	$ 50.7	[1]
Advertising, promotions and marketing	41.9	[2]	45.2	[2]	59.4	[2]
Cooperative advertising expenditures	13.1	[3]	10.9	[3]	9.5	[3]
Rent expense	$ 50.5	[4]	$ 53.5	[4]	$ 67.8	[4]

[1] esearch and development costs related to discontinued operations of $1.2 million for the year ended December 31, 2012.

[2] dvertising, promotions and marketing costs related to discontinued operations of $4.1 million and $20.1 million for the years ended December 31, 2013 and 2012, respectively. No advertising costs related to discontinued operations were recorded for the year ended December 31, 2014. Cooperative advertising expenditures were not included in these amounts.

[3] Cooperative advertising expenditures were included in Selling, general and administrative expenses in the Consolidated Statements of Operations.

[4] ent expense related to discontinued operations of $4.5 million and $20.1 million for the years ended December 31, 2013 and 2012, respectively.