Goodwill and Other Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended								12 Months Ended			3 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Dec. 31, 2012	Dec. 31, 2011	Jan. 02, 2011	Oct. 02, 2011 Online Lead Generation Business [Member]	Oct. 03, 2010 Online Lead Generation Business [Member]
Goodwill [Line Items]
Impairment of goodwill and other intangible assets												$ 11,900,000	$ 27,500,000
Goodwill and other long-lived asset impairment charges	111,593,000	0	0	0					111,593,000	0	0
Amortization of Intangible Assets
Amortization of intangible assets	7,610,000	5,091,000	4,428,000	3,873,000	5,042,000	6,320,000	5,797,000	5,176,000	21,002,000	22,335,000	21,552,000
Estimated amortization of intangible assets, 2013									15,000,000
Estimated amortization of intangible assets, 2014									9,000,000
Estimated amortization of intangible assets, 2015									7,000,000
Estimated amortization of intangible assets, 2016									6,000,000
Estimated amortization of intangible assets, 2017									5,000,000
Estimated amortization of intangible assets, after 2017									$ 4,000,000