Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment reporting information profit (loss)
Revenue	$ 790,125	$ 760,281	$ 2,373,782	$ 2,354,108
Reconciliation of Segment EBIT to net income:
Restructuring charges and asset impairments, net	(47,017)	(6,099)	(56,616)	(18,771)
Interest, net	(28,704)	(26,588)	(84,325)	(89,377)
Other expense	(667)	(7,964)	(18,350)	(7,964)
Provision for income taxes	24,895	2,468	13,351	(17,235)
Income from continuing operations	5,345	47,656	32,112	132,553
(Loss) income from discontinued operations, net of tax	(8,470)	32,621	(14,199)	59,289
Net (loss) income	(3,125)	80,277	17,913	191,842
Operating Segments
Segment reporting information profit (loss)
EBIT	126,848	137,712	374,341	441,419
Segment Reconciling Items
Reconciliation of Segment EBIT to net income:
Unallocated corporate expenses	(58,277)	(40,988)	(160,283)	(141,321)
Restructuring charges and asset impairments, net	(47,017)	(6,099)	(56,616)	(18,771)
Interest, net	(39,730)	(37,437)	(117,758)	(122,484)
Other expense	(667)	(7,964)	(18,350)	(7,964)
Transaction costs	(707)	(36)	(2,573)	(1,091)
Commerce Services
Segment reporting information profit (loss)
Revenue from contracts with customers	410,478	358,179	1,222,036	1,101,057
Commerce Services \| Operating Segments
Segment reporting information profit (loss)
EBIT	(4,106)	3,105	(3,754)	28,992
Commerce Services \| Global Ecommerce
Segment reporting information profit (loss)
Revenue from contracts with customers	278,995	232,845	827,568	718,535
EBIT	(21,793)	(14,330)	(51,969)	(28,034)
Commerce Services \| Presort Services
Segment reporting information profit (loss)
Revenue from contracts with customers	131,483	125,334	394,468	382,522
EBIT	17,687	17,435	48,215	57,026
SendTech Solutions
Segment reporting information profit (loss)
Revenue from contracts with customers	379,647	402,102	1,151,746	1,253,051
SendTech Solutions \| Operating Segments
Segment reporting information profit (loss)
EBIT	$ 130,954	$ 134,607	$ 378,095	$ 412,427

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