Benefit Plans - Additional Information (Details) (USD $)	3 Months Ended	12 Months Ended			12 Months Ended							11 Months Ended	12 Months Ended		4 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	5 Months Ended	7 Months Ended	11 Months Ended	12 Months Ended		11 Months Ended	12 Months Ended		11 Months Ended	12 Months Ended		11 Months Ended	12 Months Ended						1 Months Ended	11 Months Ended	12 Months Ended				11 Months Ended	12 Months Ended		1 Months Ended	4 Months Ended	5 Months Ended	7 Months Ended	8 Months Ended	11 Months Ended	12 Months Ended				36 Months Ended	48 Months Ended	1 Months Ended
	Jun. 30, 2010	Dec. 31, 2012 plan	Dec. 31, 2011	Feb. 02, 2010	Dec. 31, 2012 Fixed income and equity futures Futures Period One	Dec. 31, 2012 Fixed income and equity futures Futures Period Two	Dec. 31, 2012 Fixed income and equity futures Futures Period Three	Dec. 31, 2012 Equity Securities	Dec. 31, 2011 Equity Securities	Dec. 31, 2012 Debt Securities	Dec. 31, 2011 Debt Securities	Dec. 31, 2010 Dex One Retirement Plan	Dec. 31, 2012 Dex One Retirement Plan	Dec. 31, 2011 Dex One Retirement Plan	Apr. 30, 2012 Pension Benefit Equalization Plan (PBEP)	Dec. 31, 2012 Pension Benefit Equalization Plan (PBEP)	Dec. 31, 2011 Pension Benefit Equalization Plan (PBEP)	Apr. 30, 2012 Dex Media Pension Plan	May 31, 2011 Dex Media Pension Plan	Dec. 31, 2011 Dex Media Pension Plan	Dec. 31, 2010 Dex Media Pension Plan	Dec. 31, 2012 Dex Media Pension Plan	Dec. 31, 2011 Dex Media Pension Plan	Dec. 31, 2010 Dex One 401(k) Savings Plan	Dec. 31, 2012 Dex One 401(k) Savings Plan	Dec. 31, 2011 Dex One 401(k) Savings Plan	Dec. 31, 2010 Dex Media, Inc. Employee Savings Plan	Dec. 31, 2012 Dex Media, Inc. Employee Savings Plan	Dec. 31, 2011 Dex Media, Inc. Employee Savings Plan	Dec. 31, 2010 Business.com 401(k) Savings Plan	Dec. 31, 2011 Business.com 401(k) Savings Plan	Dec. 31, 2012 Dex Media Pension Plan and Dex One Pension Benefit Equalization Plan	Dec. 31, 2011 Dex Media Pension Plan and Dex One Pension Benefit Equalization Plan	Dec. 31, 2011 Dex One Retirement Plan and Dex Media Pension Plan	Dec. 31, 2012 Pension Plans plan	Dec. 31, 2011 Pension Plans	Jan. 31, 2010 Pension Plans Dex One Retirement Plan	Dec. 31, 2010 Pension Plans Dex One Retirement Plan	Dec. 31, 2012 Pension Plans Dex One Retirement Plan	Dec. 31, 2011 Pension Plans Dex One Retirement Plan	Dec. 31, 2012 Pension Plans Dex One Retirement Plan Minimum	Dec. 31, 2012 Pension Plans Dex One Retirement Plan Maximum	Dec. 31, 2010 Pension Plans Pension Benefit Equalization Plan (PBEP)	Dec. 31, 2012 Pension Plans Pension Benefit Equalization Plan (PBEP)	Dec. 31, 2011 Pension Plans Pension Benefit Equalization Plan (PBEP)	Jan. 31, 2010 Pension Plans Dex Media Pension Plan	Apr. 30, 2012 Pension Plans Dex Media Pension Plan	May 31, 2011 Pension Plans Dex Media Pension Plan	Dec. 31, 2011 Pension Plans Dex Media Pension Plan	Dec. 31, 2012 Pension Plans Dex Media Pension Plan	Dec. 31, 2010 Pension Plans Dex Media Pension Plan	Dec. 31, 2012 Pension Plans Dex Media Pension Plan	Dec. 31, 2011 Pension Plans Dex Media Pension Plan	Dec. 31, 2012 Postretirement Plans	Dec. 31, 2011 Postretirement Plans plan	Dec. 31, 2012 Defined Benefit Postretirement Health Coverage Union Employees [Member]	Dec. 31, 2012 Defined Benefit Postretirement Health Coverage Non-Union Employees [Member]	Jan. 31, 2010 Predecessor Company Dex One Retirement Plan	Jan. 31, 2010 Predecessor Company Dex Media Pension Plan	Jan. 31, 2010 Predecessor Company Dex One 401(k) Savings Plan	Jan. 31, 2010 Predecessor Company Dex Media, Inc. Employee Savings Plan	Jan. 31, 2010 Predecessor Company Business.com 401(k) Savings Plan	Jan. 31, 2010 Predecessor Company Pension Plans	Jan. 31, 2010 Predecessor Company Pension Plans Dex One Retirement Plan	Jan. 31, 2010 Predecessor Company Pension Plans Pension Benefit Equalization Plan (PBEP)	Jan. 31, 2010 Predecessor Company Pension Plans Dex Media Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans																																			2
Number of defined contribution plans		2
Number of postretirement plans																																																							2
Requisite service period																																							1 year
Percentage of compensation allocated to retirement account																																									3.00%	12.50%
Employer contributions																																			$ 15,251,000	$ 17,329,000		$ 1,000,000	$ 5,200,000	$ 3,100,000			$ 1,900,000	$ 1,100,000	$ 600,000						$ 8,800,000	$ 9,000,000	$ 13,600,000	$ 0	$ 339,000									$ 0	$ 0	$ 0
Retirement age																																			65 years
Employer matching contribution		100.00%
Maximum annual contribution per employee		6.00%
Defined contribution plan, requisite service period		1 year
Savings plans, employer plan contribution																								8,700,000	7,600,000	9,000,000	4,700,000	2,100,000	2,400,000	300,000	0																													500,000	400,000	100,000
Phase out period of benefits																																																								2 years	3 years
Accumulated benefit obligation		255,877,000	249,234,000
Fresh-start adjustment, unamortized amounts previously charged to AOCI, eliminated				44,700,000
Amounts amortized from AOCI in next fiscal year		2,400,000
Settlement loss																																(3,746,000)		(2,748,000)																													0
Weighted average discount rate												5.70%		5.30%	4.51%	4.25%	5.30%	4.38%	5.06%	4.95%	5.70%																5.70%	5.70%	4.51%	5.30%						5.70%	4.38%	5.06%	4.95%	4.22%	5.70%
Futures maturity period					5 years	10 years	20 years
Expected return on plan assets												8.00%	7.50%	8.00%							8.00%	7.50%	8.00%									7.50%	8.00%				8.00%	8.00%	7.50%	8.00%						8.00%	7.50%	8.00%	8.00%	7.50%	8.00%							8.00%	8.00%
Curtailment gain	(3,800,000)																																																														0
Expected employer contributions in next fiscal year																																			$ 4,700,000
Asset allocation target		100.00%	100.00%					65.00%	65.00%	35.00%	35.00%