Supplemental Information (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Research and development	$ 60,700,000	[1]	$ 53,700,000	[1]	$ 50,700,000	[1]
Advertising, promotions and marketing	41,900,000	[2]	45,200,000	[2]	59,400,000	[2]
Rent expense	50,500,000	[3]	53,500,000	[3]	67,800,000	[3]
Discontinued Operations [Member]
Research and development	0		0		1,200,000
Advertising, promotions and marketing	0		4,100,000		20,100,000
Rent expense	$ 0		$ 4,500,000		$ 20,100,000

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