Acquisitions, Intangible Assets and Goodwill (Goodwill) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($)
Goodwill [Roll Forward]
Goodwill	$ 1,745,957
Acquisitions	7,769
Foreign currency translation	11,276
Goodwill	1,765,002
North America Mailing
Goodwill [Roll Forward]
Goodwill	296,053
Acquisitions	0
Foreign currency translation	5,497
Goodwill	301,550
International Mailing
Goodwill [Roll Forward]
Goodwill	148,351
Acquisitions	0
Foreign currency translation	5,566
Goodwill	153,917
Small & Medium Business Solutions
Goodwill [Roll Forward]
Goodwill	444,404
Acquisitions	0
Foreign currency translation	11,063
Goodwill	455,467
Production Mail
Goodwill [Roll Forward]
Goodwill	105,757
Acquisitions	0
Foreign currency translation	1,178
Goodwill	106,935
Presort Services
Goodwill [Roll Forward]
Goodwill	$ 196,890
Acquisitions
Foreign currency translation	$ 0
Goodwill	196,890
Enterprise Business Solutions
Goodwill [Roll Forward]
Goodwill	302,647
Acquisitions	0
Foreign currency translation	1,178
Goodwill	303,825
Software Solutions
Goodwill [Roll Forward]
Goodwill	674,976
Acquisitions	0
Foreign currency translation	(965)
Goodwill	674,011
Global Ecommerce
Goodwill [Roll Forward]
Goodwill	323,930
Acquisitions	7,769
Foreign currency translation	0
Goodwill	331,699
Digital Commerce Solutions
Goodwill [Roll Forward]
Goodwill	998,906
Acquisitions	7,769
Foreign currency translation	(965)
Goodwill	$ 1,005,710

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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