Acquisitions, Divestitures, Intangible Assets and Goodwill (Goodwill) (Details) $ in Thousands	6 Months Ended
Jun. 30, 2016 USD ($)
Goodwill [Roll Forward]
Goodwill	$ 1,745,957
Acquisitions	9,421
Foreign currency translation	(2,664)
Goodwill	1,752,714
North America Mailing
Goodwill [Roll Forward]
Goodwill	296,053
Acquisitions	0
Foreign currency translation	2,753
Goodwill	298,806
International Mailing
Goodwill [Roll Forward]
Goodwill	148,351
Acquisitions	0
Foreign currency translation	3,419
Goodwill	151,770
Small & Medium Business Solutions
Goodwill [Roll Forward]
Goodwill	444,404
Acquisitions	0
Foreign currency translation	6,172
Goodwill	450,576
Production Mail
Goodwill [Roll Forward]
Goodwill	105,757
Acquisitions	0
Foreign currency translation	(1,291)
Goodwill	104,466
Presort Services
Goodwill [Roll Forward]
Goodwill	196,890
Acquisitions	0
Foreign currency translation	0
Goodwill	196,890
Enterprise Business Solutions
Goodwill [Roll Forward]
Goodwill	302,647
Acquisitions	0
Foreign currency translation	(1,291)
Goodwill	301,356
Software Solutions
Goodwill [Roll Forward]
Goodwill	674,976
Acquisitions	0
Foreign currency translation	(7,545)
Goodwill	667,431
Global Ecommerce
Goodwill [Roll Forward]
Goodwill	323,930
Acquisitions	9,421
Foreign currency translation	0
Goodwill	333,351
Digital Commerce Solutions
Goodwill [Roll Forward]
Goodwill	998,906
Acquisitions	9,421
Foreign currency translation	(7,545)
Goodwill	$ 1,000,782

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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