Segment Information (Depreciation and Amortization) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 160,430	$ 163,816	$ 162,859
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	130,311	135,824	136,321
Operating Segments | Global Ecommerce
Segment Reporting Information [Line Items]
Depreciation and amortization	66,664	78,296	79,128
Operating Segments | Presort Services
Segment Reporting Information [Line Items]
Depreciation and amortization	33,642	28,039	27,243
Operating Segments | SendTech Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization	30,005	29,489	29,950
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 30,119	$ 27,992	$ 26,538