CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Cash flows from operating activities
Net income	$ 93.1	$ 188.5
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	79.5	91.3
Deferred income taxes	(14.1)	(2.0)
Share-based compensation expense	23.1	22.2
Provision for bad debt	5.6	0.6
Discount accretion on insurance claims	0.4	0.3
Loss on sale of assets	0.0	0.1
Change in fair value of contingent consideration	36.0	(45.6)
Income from unconsolidated affiliates	(4.7)	(3.0)
Distributions from unconsolidated affiliates	4.6	1.9
Changes in operating assets and liabilities
Trade accounts receivable and costs incurred in excess of amounts billed	42.3	(125.1)
Prepaid expenses and other current assets	(24.2)	(22.3)
Right-of-use assets	7.8	8.0
Other noncurrent assets	(24.7)	25.0
Trade accounts payable and other accrued liabilities	(68.9)	(45.9)
Long-term lease liabilities	(3.5)	(10.8)
Insurance claims	46.6	18.7
Income taxes payable, net	(0.8)	4.4
Other noncurrent liabilities	(1.9)	(2.2)
Total adjustments	103.2	(84.4)
Net cash provided by operating activities	196.3	104.1
Cash flows from investing activities
Additions to property, plant and equipment	(44.6)	(34.6)
Proceeds from sale of assets	0.9	2.0
Purchase of businesses, net of cash acquired	(114.3)	0.0
Investments in equity securities	0.0	(12.4)
Net cash used in investing activities	(157.9)	(45.0)
Cash flows from financing activities
Taxes withheld from issuance of share-based compensation awards, net	(7.9)	(11.3)
Repurchases of common stock, including excise taxes	(23.8)	(27.1)
Dividends paid	(42.4)	(43.5)
Borrowings from debt	912.0	794.0
Repayment of borrowings from debt	(887.4)	(738.4)
Changes in book cash overdrafts	29.5	(10.5)
Financing of energy savings performance contracts	0.0	0.5
Repayment of finance lease obligations	(3.1)	(2.2)
Net cash used in financing activities	(23.0)	(38.4)
Effect of exchange rate changes on cash and cash equivalents	1.4	3.9
Net increase in cash and cash equivalents	16.8	24.7
Cash and cash equivalents at beginning of year	69.5	73.0
Cash and cash equivalents at end of period	$ 86.3	$ 97.7