CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities
Net income	$ 57.9	$ 240.1
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	44.0	38.0
Stock-based compensation expense	25.7	31.2
Non-cash interest expense	4.6	3.8
Loss on extinguishment of debt	123.9	0.0
Deferred income taxes	7.0	(139.2)
Provision for credit losses	5.1	0.6
Other	4.0	4.6
Changes in operating assets and liabilities:
Inventories	(4.7)	(30.3)
Prepaid expenses and other assets	(31.6)	(15.7)
Accounts payable	72.6	56.4
Net cash provided by operating activities	260.3	174.4
Cash flows from investing activities
Capital expenditures	(30.9)	(44.6)
Investments in developed software	(8.0)	(4.3)
Net cash used in investing activities	(38.9)	(48.9)
Cash flows from financing activities
Proceeds from issuance of senior unsecured notes, net of issuance costs	440.7	0.0
Repayment of convertible debt	(541.5)	0.0
Settlement of capped call options	75.7	0.0
Proceeds from issuance of term loan B, net of issuance costs	15.5	0.0
Repayment of term loan B	(18.0)	(2.5)
Repayment of equipment financings	(7.1)	(12.2)
Financing lease payments	0.0	(5.9)
Repayment of mortgage	(1.2)	(1.2)
Proceeds from secured borrowing (note 3)	36.1	17.9
Repayment of secured borrowing (note 3)	(32.6)	(8.2)
Repurchase of common stock	(30.1)	0.0
Proceeds from exercise of stock options	12.6	6.9
Proceeds from issuance of common stock under employee stock purchase plan	7.1	6.0
Payment of withholding taxes in connection with vesting of restricted stock units	(22.9)	(6.1)
Net cash used in financing activities	(65.8)	(5.3)
Effect of exchange rate changes on cash and cash equivalents	12.7	(3.4)
Net increase in cash, cash equivalents and restricted cash	168.2	116.8
Cash and cash equivalents at beginning of period	953.4	704.2
Cash and cash equivalents at end of period	1,121.6	821.0
Supplemental Cash Flow Elements [Abstract]
Purchases of property and equipment included in accounts payable and accrued expenses	4.5	12.6
Purchases of property, plant and equipment included in long-term debt	3.5	0.0
Nonrelated Party
Changes in operating assets and liabilities:
Accounts receivable	(41.8)	(29.1)
Accrued expenses and other liabilities	19.7	(3.2)
Related Party
Changes in operating assets and liabilities:
Accounts receivable	(25.1)	19.9
Accrued expenses and other liabilities	$ (1.0)	$ (2.6)