Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities
Net income (loss)		$ 361.7	$ 435.0	$ 458.4
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization		201.8	176.2	159.2
Stock-based compensation		31.0	28.0	27.6
Certain interest expense and other financing costs		3.9	2.2	5.2
Loss on debt extinguishment		2.4	0.0	0.0
Gain on sale of fixed assets and other		(7.5)	(15.6)	(4.1)
Deferred income taxes		17.2	27.3	30.1
Changes in operating assets and liabilities:
Accounts receivable		15.4	(104.7)	(111.4)
Inventories		(114.5)	129.1	(117.7)
Prepaid expenses and other current assets		(56.0)	(27.5)	(36.3)
Accounts payable and accrued expenses		(43.2)	141.6	(15.2)
Other assets and liabilities		7.2	(3.8)	5.3
Net cash provided by (used in) operating activities		419.4	787.8	401.1
Investing Activities
Capital expenditures		(126.6)	(122.9)	(90.1)
Acquisition of business, net		(420.5)	(119.0)	(309.2)
Proceeds from sale of assets		7.9	17.5	5.2
Purchases of investments		(1.3)	(1.2)	(1.5)
Net cash provided by (used in) investing activities		(540.5)	(225.6)	(395.6)
Financing Activities
Borrowings under revolving lines of credit		2,881.7	2,374.2	2,781.3
Payments under revolving lines of credit		(2,815.1)	(2,550.7)	(2,520.6)
Borrowings under term loan		300.0	0.0	0.0
Payments under term loan		(12.8)	(10.0)	(10.0)
Borrowings under senior notes		0.0	600.0	0.0
Payment of debt issuance costs		(0.2)	(8.0)	0.0
Payments under equipment financing facilities and finance leases		(30.7)	(21.2)	(12.1)
Repurchase of convertible Preferred Stock		0.0	(805.7)	0.0
Payment of fees for the repurchase of convertible Preferred Stock		(0.1)	0.0	0.0
Repurchase and retirement of common stock, net		(225.0)	(110.9)	(388.1)
Payment of dividends on Preferred Stock		0.0	(18.9)	(24.0)
Proceeds from disgorgement of short-swing profits		0.0	5.9	0.0
Proceeds from employee stock purchase plan		13.2	0.0	0.0
Proceeds from issuance of common stock related to equity awards		9.4	12.7	16.7
Payment of taxes related to net share settlement of equity awards		(7.6)	(13.8)	(5.7)
Net cash provided by (used in) financing activities		112.8	(546.4)	(162.5)
Effect of exchange rate changes on cash and cash equivalents		(1.4)	0.5	(1.1)
Net increase (decrease) in cash and cash equivalents		(9.7)	16.3	(158.1)
Cash and cash equivalents, beginning of period		84.0	67.7	225.8
Cash and cash equivalents, end of period		74.3	84.0	67.7
Cash paid during the period for:
Interest		177.8	111.3	83.4
Income taxes paid (received), net of refunds	[1]	$ 110.6	$ 120.6	$ 157.1

[1] Taxes paid in the year ended December 31, 2022 includes $18.6 million related to the transition period from October 1, 2021 to December 31, 2021.