Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Cash flows from operating activities:
Net income (loss)	$ (4.2)	$ 14.3	$ (6.2)	$ 3.3	$ 26.9	$ (16.9)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization					24.7	20.1
Amortization of acquisition-related inventory fair value step-up					4.3	0.0
Provision for credit losses					0.9	1.0
Provision for warranties					18.1	12.8
Deferred compensation expense (benefit)					0.1	(0.1)
Share-based compensation					4.9	3.7
Deferred tax provision (benefit)					0.1	(6.7)
Gain on sale of property and equipment, net	0.0		0.0		(0.1)	(1.1)
Goodwill impairment	0.0		0.0		0.0	20.2	$ 20.2
Amortization of debt issuance costs					0.7	0.2
Distributions to deferred compensation programs' participants					(0.9)	(0.8)
Change in operating assets and liabilities:
Purchase of trading securities, net					(0.8)	(1.6)
Receivables and other contract assets					(2.5)	(23.9)
Inventories					(19.5)	(9.9)
Prepaid expenses					9.1	2.8
Other assets					1.8	(2.1)
Accounts payable					(1.1)	(28.5)
Accrued loss reserves					0.2	(0.3)
Accrued employee related liabilities					9.5	(4.7)
Other accrued liabilities					(5.8)	22.0
Accrued product warranty					(16.3)	(14.1)
Customer deposits					(18.7)	13.5
Income taxes payable/prepaid					(10.3)	0.8
Net cash provided by (used in) operating activities					25.3	(13.6)
Cash flows from investing activities:
Acquisitions, net of cash acquired					(248.5)	0.0
Expenditures for property and equipment					(12.0)	(16.0)
Proceeds from sale of property and equipment					0.2	2.3
Purchase of investments					(0.8)	(0.9)
Sale of investments					0.7	0.6
Net cash used in investing activities					(260.4)	(14.0)
Cash flows from financing activities:
Payment of dividends					(8.9)	(8.9)
Proceeds from borrowings on credit facilities and bank loans					454.8	140.6
Repayments of borrowings on credit facilities and bank loans					(222.5)	(111.9)
Payment of debt issuance costs					(10.4)	0.0
Sale of Company stock by deferred compensation programs, net					0.1	0.2
Withholding tax paid upon vesting of share-based compensation awards					(0.7)	(0.5)
Net cash provided by financing activities					212.4	19.5
Effect of exchange rates on cash					1.2	0.2
Decrease in cash, cash equivalents and restricted cash					(21.5)	(7.9)
Cash, cash equivalents and restricted cash, beginning of period		$ 90.8		$ 63.2	90.8	63.2	63.2
Cash, cash equivalents and restricted cash, end of period	$ 69.3		$ 55.3		69.3	55.3	$ 90.8
Cash paid during the year for:
Interest					10.2	6.5
Income taxes paid, net					18.6	6.3
Non-cash investing activities:
Capital expenditures in accounts payable					0.4	0.6
Non-cash financing activities:
Additions to right-of-use assets and lease liabilities					$ 2.1	$ 2.0