Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
OPERATING ACTIVITIES:
Net income (loss)	$ 29.8	$ (36.6)	$ (98.7)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization expense	138.0	150.4	162.8
Stock-based compensation expense	15.2	15.6	21.9
Loss on debt extinguishment	5.8	0.0	2.6
Amortization of debt issuance costs	4.2	3.1	3.1
Provision for doubtful accounts	2.5	3.4	1.8
Inventory obsolescence write down	1.6	5.2	2.3
Change in deferred income taxes	(22.3)	(23.8)	(30.9)
Loss on disposal of property, plant and equipment and badges	0.6	0.5	0.6
(Gain) loss on foreign currency transactions	(17.4)	2.2	(0.3)
Increase in fair values of warrant liabilities	0.0	5.3	24.8
(Gain) loss on disposal of business	0.0	(1.2)	6.5
Other	1.0	1.8	(0.6)
Changes in operating assets and liabilities:
Accounts receivable	14.6	(12.0)	(5.0)
Costs in excess of billings on uncompleted contracts	(7.7)	(23.9)	1.9
Inventories	3.3	1.3	(0.5)
Deferred cost of revenue	(0.1)	0.3	0.7
Prepaid expenses and other current assets	(9.4)	(2.6)	(14.0)
Accounts payable	(10.8)	(1.5)	(9.9)
Accrued expenses and other current liabilities	(0.3)	11.3	2.6
Deferred contract revenue	(0.9)	(1.1)	23.9
Other assets	(1.3)	0.9	0.3
Other liabilities	(3.1)	0.5	(0.7)
Net cash provided by operating activities	143.3	99.1	95.2
INVESTING ACTIVITIES:
Acquisitions of businesses, net of cash and cash equivalents acquired	(661.9)	(1.0)	(31.4)
Proceeds from disposal of property, plant, and equipment and badges	1.0	0.0	0.0
Purchases of property, plant, and equipment and badges	(36.4)	(48.8)	(37.1)
Proceeds from net investment hedge derivative contracts	2.7	3.6	3.8
Proceeds from business disposal	0.0	2.5	1.0
Other investing	0.0	0.0	(1.0)
Net cash used in investing activities	(694.6)	(43.7)	(64.7)
FINANCING ACTIVITIES:
Issuances of common stock	425.0	0.0	150.0
Common stock issuance costs	(15.3)	0.0	(0.3)
Stock repurchased to satisfy tax withholding for vesting restricted stock units	(6.4)	(2.0)	(1.0)
Purchases of stock for treasury	(49.6)	0.0	0.0
Proceeds from issuance of convertible senior notes, net of bank costs	755.0	0.0	0.0
Third-party issuance costs for convertible senior notes	(1.4)	0.0	0.0
Purchase of capped calls related to convertible senior notes	(82.6)	0.0	0.0
Term loan principal repayments	(244.6)	0.0	(127.3)
Financing costs	(3.8)	(1.3)	0.0
Proceeds from cash flow hedge derivative contracts	0.7	1.0	0.6
Other financing	(1.1)	(1.0)	0.6
Net cash provided by (used in) financing activities	775.9	(3.3)	22.6
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	15.0	(7.0)	2.4
Net increase in cash, cash equivalents, and restricted cash	239.6	45.1	55.5
Cash, cash equivalents, and restricted cash at beginning of period	175.6	130.5	75.0
Cash, cash equivalents, and restricted cash at end of period	$ 415.2	$ 175.6	$ 130.5