Revenue (Disaggregates of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	$ 796,268	$ 795,084
Total consolidated revenue	796,268	795,084
ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	629,233	607,390
Products/services transferred at a point in time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	78,374	86,877
Products/services transferred over time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	550,859	520,513
Sales And Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	629,233	607,390
Revenue from leasing transactions and financing	167,035	187,694
Total consolidated revenue	796,268	795,084
Business services
Disaggregation of Revenue [Line Items]
Revenue from products and services	444,379	406,545
Revenue from leasing transactions and financing	0	0
Total consolidated revenue	444,379	406,545
Support services
Disaggregation of Revenue [Line Items]
Revenue from products and services	122,015	128,599
Revenue from leasing transactions and financing	0	0
Total consolidated revenue	122,015	128,599
Financing
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	89,078	97,043
Total consolidated revenue	89,078	97,043
Equipment sales
Disaggregation of Revenue [Line Items]
Revenue from products and services	17,130	21,293
Revenue from leasing transactions and financing	59,143	68,494
Total consolidated revenue	76,273	89,787
Supplies
Disaggregation of Revenue [Line Items]
Revenue from products and services	45,709	50,953
Revenue from leasing transactions and financing	0	0
Total consolidated revenue	45,709	50,953
Rentals
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	18,814	22,157
Total consolidated revenue	18,814	22,157
Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	292,323	266,254
Global Ecommerce | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	292,323	266,254
Global Ecommerce | Products/services transferred at a point in time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Global Ecommerce | Products/services transferred over time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	292,323	266,254
Global Ecommerce | Sales And Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	292,323	266,254
Global Ecommerce | Business services
Disaggregation of Revenue [Line Items]
Revenue from products and services	292,323	266,254
Global Ecommerce | Support services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Global Ecommerce | Financing
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	0	0
Global Ecommerce | Equipment sales
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	0	0
Global Ecommerce | Supplies
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Global Ecommerce | Rentals
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	0	0
Presort Services
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	140,720	134,847
Presort Services | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	140,720	134,847
Presort Services | Products/services transferred at a point in time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Presort Services | Products/services transferred over time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	140,720	134,847
Presort Services | Sales And Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	140,720	134,847
Presort Services | Business services
Disaggregation of Revenue [Line Items]
Revenue from products and services	140,720	134,847
Presort Services | Support services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Presort Services | Financing
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	0	0
Presort Services | Equipment sales
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	0	0
Presort Services | Supplies
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Presort Services | Rentals
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	0	0
SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	363,225	393,983
SendTech Solutions | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	196,190	206,289
SendTech Solutions | Products/services transferred at a point in time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	78,374	86,877
SendTech Solutions | Products/services transferred over time | ASC 606
Disaggregation of Revenue [Line Items]
Revenue from products and services	117,816	119,412
SendTech Solutions | Sales And Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	196,190	206,289
SendTech Solutions | Business services
Disaggregation of Revenue [Line Items]
Revenue from products and services	11,336	5,444
SendTech Solutions | Support services
Disaggregation of Revenue [Line Items]
Revenue from products and services	122,015	128,599
SendTech Solutions | Financing
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	89,078	97,043
SendTech Solutions | Equipment sales
Disaggregation of Revenue [Line Items]
Revenue from products and services	17,130	21,293
Revenue from leasing transactions and financing	59,143	68,494
SendTech Solutions | Supplies
Disaggregation of Revenue [Line Items]
Revenue from products and services	45,709	50,953
SendTech Solutions | Rentals
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0
Revenue from leasing transactions and financing	$ 18,814	$ 22,157