CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net income (loss)	$ 103.0	$ (12.4)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	54.0	47.0
Stock-based compensation expense	35.7	29.7
Non-cash interest expense	4.6	4.3
Provision for credit losses	2.1	3.1
Other	(0.2)	1.1
Changes in operating assets and liabilities:
Accounts receivable	(52.1)	(28.3)
Accounts receivable — related party	(15.2)	(22.5)
Inventories	(65.3)	(34.5)
Prepaid expenses and other assets	(24.5)	(32.1)
Accounts payable	41.5	23.3
Net cash provided by operating activities	100.5	68.3
Cash flows from investing activities
Capital expenditures	(46.3)	(58.5)
Investments in developed software	(6.2)	(10.4)
Acquisition of intangible assets	(25.1)	0.0
Acquisition of a business	(3.0)	(26.0)
Cash paid for investments	(7.2)	(7.8)
Net cash used in investing activities	(87.8)	(102.7)
Cash flows from financing activities
Repayment of equipment financings	(14.8)	(13.0)
Repayment of term loan	(3.8)	(3.7)
Repayment of mortgage	(1.7)	(1.6)
Proceeds from exercise of stock options	12.4	4.3
Proceeds from issuance of common stock under employee stock purchase plan	5.5	4.9
Payment of withholding taxes in connection with vesting of restricted stock units	(13.1)	(16.7)
Other	(0.3)	0.0
Net cash used in financing activities	(15.8)	(25.8)
Effect of exchange rate changes on cash	(1.2)	(9.1)
Net decrease in cash, cash equivalents and restricted cash	(4.3)	(69.3)
Cash, cash equivalents and restricted cash at beginning of period (Note 3)	689.7	806.4
Cash, cash equivalents and restricted cash at end of period (Note 3)	685.4	737.1
Supplemental noncash information:
Purchases of property and equipment included in accounts payable and accrued expenses	7.8	6.0
Purchases of property, plant and equipment included in long-term debt	12.9	0.0
Purchases of developed software included in accounts payable and accrued expenses	0.7	0.8
Operating lease liabilities arising from obtaining right-of-use assets	5.1	12.1
Finance lease liability arising from obtaining right-of-use assets	21.8	0.0
Nonrelated Party
Changes in operating assets and liabilities:
Accrued expenses and other liabilities	16.2	87.8
Related Party
Changes in operating assets and liabilities:
Accrued expenses and other liabilities	$ 0.7	$ 1.8