Summary of Significant Accounting Policies - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Marketing and Advertising Expense:
Advertising Expense	$ 1,500,000	$ 3,900,000	$ 6,700,000	$ 13,700,000
Credit Concentration Risk | Advertising Revenue Local Businesses
Concentration Risk:
Concentration of Credit Risk			85.00%
Credit Concentration Risk | Advertising Revenue Large Regional Chains
Concentration Risk:
Concentration of Credit Risk			15.00%
Interest Expense
Interest Expense, Net:
Amortization of the Fair Value Adjustment	5,800,000	6,900,000	19,600,000	21,700,000
Interest Rate Swaps and Interest Rate Caps | Not Designated as Hedging Instrument | Interest Expense
Interest Expense, Net:
Derivative, Gain (Loss) on Derivative, Net	$ 600,000	$ 1,600,000	$ 1,500,000	$ 1,800,000