CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue:
Total revenue	$ 499,463	$ 503,033	$ 1,510,477	$ 1,552,509
Costs and expenses:
Selling, general and administrative	189,989	182,744	569,625	583,174
Research and development	7,580	7,715	22,465	21,380
Restructuring charges	30,694	13,942	64,859	34,768
Goodwill impairment	0	0	0	43,209
Interest expense, net	27,764	26,363	83,323	70,822
Other components of net pension and postretirement income	(961)	(2,683)	(1,730)	(6,144)
Other expense (income)	50,287	0	50,287	(3,064)
Total costs and expenses	543,343	476,106	1,514,607	1,533,877
(Loss) income from continuing operations before taxes	(43,880)	26,927	(4,130)	18,632
(Benefit) provision for income taxes	(166,466)	9,115	(148,695)	18,331
Income from continuing operations	122,586	17,812	144,565	301
Loss from discontinued operations, net of tax	(261,058)	(30,331)	(310,789)	(162,092)
Net loss	$ (138,472)	$ (12,519)	$ (166,224)	$ (161,791)
Basic earnings (loss) per share:
Continuing operations - Basic (in dollars per share)	$ 0.68	$ 0.10	$ 0.81	$ 0
Discontinued operations - Basic (in dollars per share)	(1.45)	(0.17)	(1.74)	(0.92)
Net loss - Basic (in dollars per share)	(0.77)	(0.07)	(0.93)	(0.92)
Diluted earnings (loss) per share:
Continuing operations - Diluted (in dollars per share)	0.67	0.10	0.79	0
Discontinued operations - Diluted (in dollars per share)	(1.42)	(0.17)	(1.70)	(0.90)
Net loss - Diluted (in dollars per share)	$ (0.75)	$ (0.07)	$ (0.91)	$ (0.90)
Business services
Revenue:
Total revenue	$ 221,791	$ 203,269	$ 651,389	$ 638,714
Costs and expenses:
Cost of products and sales	128,573	130,141	386,531	424,661
Support services
Revenue:
Total revenue	90,956	101,855	281,301	310,454
Costs and expenses:
Cost of products and sales	30,117	33,332	94,836	105,190
Financing
Revenue:
Total revenue	68,614	68,572	203,816	202,323
Costs and expenses:
Financing interest expense	16,095	16,813	48,663	46,112
Equipment sales
Revenue:
Total revenue	66,418	76,705	216,574	238,766
Costs and expenses:
Cost of products and sales	49,075	52,952	151,948	166,303
Supplies
Revenue:
Total revenue	35,428	35,695	107,658	111,035
Costs and expenses:
Cost of products and sales	10,051	10,498	30,604	32,607
Rentals
Revenue:
Total revenue	16,256	16,937	49,739	51,217
Costs and expenses:
Cost of products and sales	$ 4,079	$ 4,289	$ 13,196	$ 14,859