Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
OPERATING ACTIVITIES
Net earnings	$ 92.4	$ 82.2	$ 102.5
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	60.2	56.7	46.3
Provision for expected losses on accounts receivable	17.6	13.7	8.4
Share-based compensation expense	25.2	22.5	19.3
Deferred income taxes	(9.4)	(14.6)	(0.5)
Net pension plan income	(1.1)	(0.5)	(0.9)
Gain on sale of long-lived assets	(9.8)	(0.8)	(0.2)
Gain on sales of investments in equity securities	(0.2)	(7.0)	0.0
(Gain) loss on sales of businesses	(0.4)	6.1	0.7
Amortization of operating lease right-of-use assets	9.3	15.4	16.4
Other	3.0	1.5	1.2
Changes in operating assets and liabilities:
Receivables, net	(4.4)	(2.3)	24.4
Prepaid expenses and other current assets	(6.3)	1.7	(3.2)
Accounts payable	(5.7)	(15.3)	12.1
Income taxes payable and receivable	(0.5)	(3.6)	(2.1)
Accrued liabilities and other	16.9	(13.8)	(53.7)
Operating lease liabilities	(13.8)	(16.1)	(18.9)
Pension and other postretirement benefits plans contributions	(1.9)	(1.8)	(1.6)
Net cash provided by operating activities	171.1	124.0	150.2
INVESTING ACTIVITIES
Capital expenditures	(65.9)	(61.8)	(54.2)
Proceeds from sale of long-lived assets	12.4	0.0	0.0
Proceeds from sales of investments in equity securities	0.2	10.0	0.0
Proceeds from sales of businesses	0.0	0.5	3.3
Net cash used in investing activities	(53.3)	(51.3)	(50.9)
FINANCING ACTIVITIES
Revolving facility borrowings	159.5	302.0	345.5
Payments on revolving facility borrowings	(159.5)	(347.0)	(300.5)
Treasury share repurchases	(81.6)	(40.3)	(164.7)
Cash received for common stock issuances	2.4	3.1	0.4
Finance lease payments	(2.9)	(2.4)	(1.8)
Net cash used in financing activities	(82.1)	(84.6)	(121.1)
Effect of exchange rate on cash and cash equivalents	(1.5)	0.8	1.5
Net increase (decrease) in cash and cash equivalents	34.2	(11.1)	(20.3)
Cash and cash equivalents at beginning of year	23.1	34.2	54.5
Cash and cash equivalents at end of year	57.3	23.1	34.2
Supplemental cash flow information:
Income taxes paid (net of refunds)	40.8	38.3	38.4
Interest paid	13.3	16.6	7.6
Non-cash investing activities:
Capitalized software included in accounts payable	0.6	0.1	1.5
Non-cash consideration from sale of investment in an equity security (Note 1)	$ 0.0	$ 2.9	$ 0.0