Long-Term Debt - Additional Information (Details) (USD $)	3 Months Ended			3 Months Ended	6 Months Ended		3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Mar. 31, 2013 Senior Subordinated Notes Dex One Senior Subordinated Notes	Mar. 31, 2013 Senior Subordinated Notes Dex One Senior Subordinated Notes	Mar. 31, 2012 Senior Subordinated Notes Dex One Senior Subordinated Notes	Mar. 31, 2013 Senior Subordinated Notes Dex One Senior Subordinated Notes Semi-Annual Interest Period Ending September 30, 2013 [Member]	Mar. 31, 2012 Amended and Restated Credit Facility	Mar. 23, 2012 Amended and Restated Credit Facility	Feb. 01, 2010 Amended and Restated Credit Facility	Mar. 31, 2013 Amended and Restated Credit Facility RHDI Amended and Restated Credit Facility	Mar. 23, 2012 Amended and Restated Credit Facility RHDI Amended and Restated Credit Facility	Mar. 31, 2013 Amended and Restated Credit Facility Dex Media East Amended and Restated Credit Facility	Mar. 23, 2012 Amended and Restated Credit Facility Dex Media East Amended and Restated Credit Facility	Mar. 31, 2013 Amended and Restated Credit Facility Dex Media West Amended and Restated Credit Facility	Mar. 23, 2012 Amended and Restated Credit Facility Dex Media West Amended and Restated Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount									$ 69,500,000
Repurchased Debt Face Amount (Par)									142,100,000			92,000,000		23,600,000		26,600,000
Gain on debt repurchases, net	0	68,763,000						68,800,000
Repurchase Percentage Rate of Par												43.50%		53.00%		64.00%
Liabilities subject to compromise	1,745,008,000		0								746,666,000		511,757,000		486,585,000
Weighted Average Interest Rate											9.00%		2.70%		7.30%
Long-term Debt, Current Maturities	219,708,000		2,009,638,000	219,708,000	219,708,000
Minimum Sated Interest Rate Percentage				12.00%
Maximum Stated Interest Rate Percentage				14.00%
Number of Days Prior to Interest Period to Elect Cash Payment Method				2 days
Percentage Required in Cash						50.00%
Percentage Required in PIK Interest						50.00%
Percentage of Interest Payments Made in Cash					50.00%		50.00%
Percentage of Interest Payments Made With PIK Interest					50.00%		50.00%
Fresh Start Accounting Discount Recognized										(120,200,000)
Write-off of remaining unamortized fair value adjustments	$ 31,761,000