Segment Information (Capital Expenditures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Capital expenditures	$ 102,878	$ 124,840	$ 184,042
Operating Segments
Segment Reporting Information [Line Items]
Capital expenditures	84,779	108,157	152,144
Operating Segments | Global Ecommerce
Segment Reporting Information [Line Items]
Capital expenditures	34,757	51,430	89,488
Operating Segments | Presort Services
Segment Reporting Information [Line Items]
Capital expenditures	11,182	23,363	36,628
Operating Segments | SendTech Solutions
Segment Reporting Information [Line Items]
Capital expenditures	38,840	33,364	26,028
Corporate
Segment Reporting Information [Line Items]
Capital expenditures	$ 18,099	$ 16,683	$ 31,898