CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($)		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Total revenue		$ 3,538,042,000	$ 3,673,561,000	$ 3,554,075,000
Costs and expenses:
Selling, general and administrative		905,570,000	924,163,000	963,323,000
Research and development		43,657,000	46,777,000	38,384,000
Restructuring charges		18,715,000	19,003,000	20,712,000
Goodwill impairment		0	0	198,169,000
Interest expense, net		89,980,000	96,886,000	105,753,000
Other components of net pension and postretirement cost (income)		4,308,000	1,010,000	(1,708,000)
Other (income) expense		(21,618,000)	41,574,000	8,151,000
Total costs and expenses		3,498,162,000	3,680,976,000	3,737,444,000
Income (loss) from continuing operations before income taxes		39,880,000	(7,415,000)	(183,369,000)
Provision (benefit) for income taxes		2,940,000	(10,922,000)	7,122,000
Income (loss) from continuing operations		36,940,000	3,507,000	(190,491,000)
(Loss) income from discontinued operations, net of tax		0	(4,858,000)	10,115,000
Net income (loss)		$ 36,940,000	$ (1,351,000)	$ (180,376,000)
Basic earnings (loss) per share attributable to common stockholders:
Continuing operations (in dollars per share)	[1]	$ 0.21	$ 0.02	$ (1.11)
Discontinued operations (in dollars per share)	[1]	0	(0.03)	0.06
Net income (loss) (in dollars per share)	[1]	0.21	(0.01)	(1.05)
Diluted earnings (loss) per share attributable to common stockholders:
Continuing operations (in dollars per share)	[1]	0.21	0.02	(1.11)
Discontinued operations (in dollars per share)	[1]	0	(0.03)	0.06
Net income (loss)(in dollars per share)	[1]	$ 0.21	$ (0.01)	$ (1.05)
Business services
Revenue:
Total revenue		$ 2,249,941,000	$ 2,334,674,000	$ 2,191,306,000
Costs and expenses:
Cost of products and sales		1,934,206,000	2,034,477,000	1,904,078,000
Support services
Revenue:
Total revenue		438,191,000	460,888,000	473,292,000
Costs and expenses:
Cost of products and sales		148,829,000	149,706,000	149,988,000
Financing
Revenue:
Total revenue		274,508,000	294,418,000	341,034,000
Costs and expenses:
Cost of products and sales		51,789,000	47,059,000	48,162,000
Equipment sales
Revenue:
Total revenue		354,960,000	350,138,000	314,882,000
Costs and expenses:
Cost of equipment sales		253,843,000	251,914,000	235,153,000
Supplies
Revenue:
Total revenue		154,186,000	159,438,000	159,282,000
Costs and expenses:
Cost of products and sales		43,778,000	43,980,000	41,679,000
Rentals
Revenue:
Total revenue		66,256,000	74,005,000	74,279,000
Costs and expenses:
Cost of products and sales		$ 25,105,000	$ 24,427,000	$ 25,600,000

[1] The sum of the earnings per share amounts may not equal the totals due to rounding.