Intangible Assets and Goodwill (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Finite lived intangible assets
Finite Lived Intangible Assets Amortization Expense	$ 14,000,000	$ 16,000,000	$ 29,000,000	$ 32,000,000
Finite lived intangible assets future amortization expense
Remaining for year ended December 31, 2010	28,761,000
Year ended December 31, 2011	52,413,000
Year ended December 31, 2012	47,081,000
Year ended December 31, 2013	41,560,000
Year ended December 31, 2014	36,273,000
Thereafter	67,742,000
Total	273,830,000
Goodwill
Goodwill	2,336,796,000		2,336,796,000		2,306,793,000
Customer Relationships [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	460,524,000		460,524,000		453,523,000
Finite lived intangible assets accumulated amortization	(248,972,000)		(248,972,000)		(229,143,000)
Finite lived intangible assets, net	211,552,000		211,552,000		224,380,000
Supplier Relationships [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	29,000,000		29,000,000		29,000,000
Finite lived intangible assets accumulated amortization	(17,642,000)		(17,642,000)		(16,192,000)
Finite lived intangible assets, net	11,358,000		11,358,000		12,808,000
Software And Technology [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	174,823,000		174,823,000		172,188,000
Finite lived intangible assets accumulated amortization	(129,193,000)		(129,193,000)		(118,390,000)
Finite lived intangible assets, net	45,630,000		45,630,000		53,798,000
Trademark And Trade Name [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	37,305,000		37,305,000		36,322,000
Finite lived intangible assets accumulated amortization	(32,345,000)		(32,345,000)		(30,224,000)
Finite lived intangible assets, net	4,960,000		4,960,000		6,098,000
Noncompete Agreements [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	8,030,000		8,030,000		7,845,000
Finite lived intangible assets accumulated amortization	(7,700,000)		(7,700,000)		(7,486,000)
Finite lived intangible assets, net	330,000		330,000		359,000
Total Intangible Assets [Member]
Finite lived intangible assets
Finite lived intangible assets, gross	709,682,000		709,682,000		698,878,000
Finite lived intangible assets accumulated amortization	(435,852,000)		(435,852,000)		(401,435,000)
Finite lived intangible assets, net	273,830,000		273,830,000		297,443,000
North America Mailing [Member]
Goodwill
Acquired during the period	0
Other	11,343,000
Goodwill	369,261,000		369,261,000		357,918,000
International Mailing [Member]
Goodwill
Acquired during the period	0
Other	14,052,000
Goodwill	195,582,000		195,582,000		181,530,000
Small And Medium Business Solutions [Member]
Goodwill
Acquired during the period	0
Other	25,395,000
Goodwill	564,843,000		564,843,000		539,448,000
Production Mail [Member]
Goodwill
Acquired during the period	0
Other	2,919,000
Goodwill	144,395,000		144,395,000		141,476,000
Software [Member]
Goodwill
Acquired during the period	0
Other	(1,948,000)
Goodwill	676,153,000		676,153,000		678,101,000
Management Services [Member]
Goodwill
Acquired during the period	0
Other	3,384,000
Goodwill	497,817,000		497,817,000		494,433,000
Mail Services [Member]
Goodwill
Acquired during the period	0
Other	253,000
Goodwill	259,355,000		259,355,000		259,102,000
Marketing Services [Member]
Goodwill
Acquired during the period	0
Other	0
Goodwill	194,233,000		194,233,000		194,233,000
Enterprise Business Solutions [Member]
Goodwill
Acquired during the period	0
Other	4,608,000
Goodwill	$ 1,771,953,000		$ 1,771,953,000		$ 1,767,345,000