Acquisitions, Intangible Assets and Goodwill (Goodwill) (Details) $ in Thousands	9 Months Ended
Sep. 30, 2018 USD ($)
Goodwill
Goodwill	$ 1,774,645
Acquisitions	2,684
Other	(12,246)
Goodwill	1,765,083
Commerce Services
Goodwill
Goodwill	807,242
Acquisitions	2,684
Other	(653)
Goodwill	809,273
Commerce Services \| Global Ecommerce
Goodwill
Goodwill	602,461
Acquisitions	0
Other	(653)
Goodwill	601,808
Commerce Services \| Presort Services
Goodwill
Goodwill	204,781
Acquisitions	2,684
Other	0
Goodwill	207,465
Small & Medium Business Solutions
Goodwill
Goodwill	527,108
Acquisitions	0
Other	(7,675)
Goodwill	519,433
Small & Medium Business Solutions \| North America Mailing
Goodwill
Goodwill	368,905
Acquisitions	0
Other	(219)
Goodwill	368,686
Small & Medium Business Solutions \| International Mailing
Goodwill
Goodwill	158,203
Acquisitions	0
Other	(7,456)
Goodwill	150,747
Software Solutions
Goodwill
Goodwill	440,295
Acquisitions	0
Other	(3,918)
Goodwill	$ 436,377

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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