CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023	Dec. 31, 2023
Operating Activities
Net income (loss) including noncontrolling interest	$ 180.3	$ 185.5	$ 359.4	$ 364.3
Adjustments to reconcile net income (loss) including noncontrolling interest to net cash provided by (used in) operating activities:
Depreciation and amortization			155.8	162.1
Stock-based compensation			21.3	16.3
Gain (loss) on debt extinguishment	0.0	(1.6)	0.0	(1.6)
Changes in operating assets and liabilities excluding the effect of business acquired:
Accounts receivable and unbilled receivables			39.1	9.9
Inventories			(43.2)	(75.3)
Accounts payable			13.3	(49.7)
Deferred taxes and income taxes receivable (payable), net			13.5	8.5
Prepaid expenses and other assets			7.4	(16.3)
Accrued expenses and other liabilities			33.6	(18.6)
Other operating, net			9.5	(6.1)
Net cash provided by (used in) operating activities			609.7	393.5
Investing Activities
Purchases of property, plant and equipment			(33.6)	(51.7)
Purchases of businesses, net of cash acquired			(123.6)	(53.5)
Other investing, net			0.1	0.7
Net cash provided by (used in) investing activities			(157.1)	(104.5)
Financing Activities
Proceeds from (payments on) fixed rate senior notes			(450.0)	(308.4)
Net borrowings from (repayments made to) credit facility			0.0	(125.0)
Proceeds from (payments on) other debt			(0.1)	(135.3)
Proceeds from exercise of stock options			11.5	15.0
Purchases of treasury stock	(193.8)		(193.8)	0.0
Liquidation (maturity) of cross currency swap			0.0	(13.5)
Other financing, net			(5.5)	(0.6)
Net cash provided by (used in) financing activities			(637.9)	(567.8)
Effects of exchange rate changes on cash			(19.8)	4.9
Change in cash and cash equivalents			(205.1)	(273.9)
Cash and cash equivalents—beginning of period			648.3	638.1	$ 638.1
Cash and cash equivalents—end of period	$ 443.2	$ 364.2	$ 443.2	$ 364.2	$ 648.3