Segment Information (Net Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Adjusted EBIT		$ 165,277	$ 165,784	$ 110,912
Reconciling items:
Interest expense, net		(101,460)	(110,094)	(98,769)
Restructuring charges	$ (58,392)	(58,392)	(76,915)	(52,412)
Settlements		0	(91,339)	0
Impairment charges		(268)	(10,000)	(123,574)
(Loss) gain on debt redemption/refinancing		(14,072)	(10,892)	3,064
Income (loss) from continuing operations before income taxes		192,524	(52,327)	(43,920)
Operating Segments
Segment Reporting Information [Line Items]
Adjusted EBIT		577,466	550,535	486,294
Operating Segments | SendTech Solutions
Segment Reporting Information [Line Items]
Adjusted EBIT		412,189	384,751	375,382
Operating Segments | Presort Services
Segment Reporting Information [Line Items]
Adjusted EBIT		165,277	165,784	110,912
Reconciling Items
Segment Reporting Information [Line Items]
Adjusted EBIT		0	(12,821)	(2,625)
Reconciling items:
Interest expense, net		(149,156)	(173,694)	(162,050)
Corporate expenses		(116,173)	(152,503)	(175,951)
Restructuring charges		(58,392)	(76,915)	(52,412)
Settlements		0	(91,339)	0
Impairment charges		(268)	(10,000)	(123,574)
(Loss) gain on debt redemption/refinancing		(14,072)	(10,892)	3,064
Proxy solicitation fees		0	0	(10,905)
Foreign currency (loss) gain on intercompany loans		(21,944)	10,243	(5,761)
Transaction and Strategic review costs		(12,179)	(17,110)	0
Reconciling Items | Disposed of by Sale | Global Ecommerce
Reconciling items:
Restructuring charges		$ (12,758)	$ (67,831)	$ 0