Revenue (Disaggregates of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total consolidated revenue	$ 793,170	$ 776,481	$ 1,623,679	$ 1,611,019
SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	320,155	328,325	647,592	663,320
Total consolidated revenue	320,155	328,325	647,592	663,320
Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	146,858	143,107	316,665	302,009
Total consolidated revenue	146,858	143,107	316,665	302,009
Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	326,157	305,049	659,422	645,690
Total consolidated revenue	326,157	305,049	659,422	645,690
Sales And Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	657,119	632,377	1,350,503	1,319,982
Revenue from leasing transactions and financing	136,051	144,104	273,176	291,037
Total consolidated revenue	793,170	776,481	1,623,679	1,611,019
Sales And Services | Products/services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from products and services	71,694	73,495	148,159	150,559
Sales And Services | Products/services transferred over time
Disaggregation of Revenue [Line Items]
Revenue from products and services	585,425	558,882	1,202,344	1,169,423
Sales And Services | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	184,104	184,221	374,416	372,283
Sales And Services | SendTech Solutions | Products/services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from products and services	71,694	73,495	148,159	150,559
Sales And Services | SendTech Solutions | Products/services transferred over time
Disaggregation of Revenue [Line Items]
Revenue from products and services	112,410	110,726	226,257	221,724
Sales And Services | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	146,858	143,107	316,665	302,009
Sales And Services | Presort Services | Products/services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Sales And Services | Presort Services | Products/services transferred over time
Disaggregation of Revenue [Line Items]
Revenue from products and services	146,858	143,107	316,665	302,009
Sales And Services | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	326,157	305,049	659,422	645,690
Sales And Services | Global Ecommerce | Products/services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Sales And Services | Global Ecommerce | Products/services transferred over time
Disaggregation of Revenue [Line Items]
Revenue from products and services	326,157	305,049	659,422	645,690
Business services
Disaggregation of Revenue [Line Items]
Revenue from products and services	506,666	473,497	1,042,263	996,988
Revenue from leasing transactions and financing	0	0	0	0
Total consolidated revenue	506,666	473,497	1,042,263	996,988
Business services | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	33,651	25,341	66,176	49,289
Business services | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	146,858	143,107	316,665	302,009
Business services | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	326,157	305,049	659,422	645,690
Support services
Disaggregation of Revenue [Line Items]
Revenue from products and services	94,012	103,315	190,345	208,599
Revenue from leasing transactions and financing	0	0	0	0
Total consolidated revenue	94,012	103,315	190,345	208,599
Support services | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	94,012	103,315	190,345	208,599
Support services | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Support services | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Financing
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Revenue from leasing transactions and financing	67,539	66,702	135,202	133,751
Total consolidated revenue	67,539	66,702	135,202	133,751
Financing | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Financing | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Financing | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Equipment sales
Disaggregation of Revenue [Line Items]
Revenue from products and services	20,932	19,060	45,665	39,055
Revenue from leasing transactions and financing	51,821	60,391	104,491	123,006
Total consolidated revenue	72,753	79,451	150,156	162,061
Equipment sales | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	20,932	19,060	45,665	39,055
Equipment sales | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Equipment sales | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Supplies
Disaggregation of Revenue [Line Items]
Revenue from products and services	35,509	36,505	72,230	75,340
Revenue from leasing transactions and financing	0	0	0	0
Total consolidated revenue	35,509	36,505	72,230	75,340
Supplies | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	35,509	36,505	72,230	75,340
Supplies | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Supplies | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Rentals
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Revenue from leasing transactions and financing	16,691	17,011	33,483	34,280
Total consolidated revenue	16,691	17,011	33,483	34,280
Rentals | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Rentals | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Rentals | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from products and services	0	0	0	0
Revenue from leasing transactions and financing
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	136,051	144,104	273,176	291,037
Revenue from leasing transactions and financing | SendTech Solutions
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	136,051	144,104	273,176	291,037
Revenue from leasing transactions and financing | Presort Services
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	0	0	0	0
Revenue from leasing transactions and financing | Global Ecommerce
Disaggregation of Revenue [Line Items]
Revenue from leasing transactions and financing	$ 0	$ 0	$ 0	$ 0