Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows provided by operating activities:
Net income	$ 234.5	$ 97.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	75.8	79.9
Amortization of inventory step-up adjustment to fair value		7.6
Amortization of debt issuance costs, original issue discount and soft call premium	2.1	6.5
Stock-based compensation	22.7	42.1
Provision for excess and obsolete inventory	19.8	18.6
Provision for doubtful accounts	0.2	0.2
Deferred income taxes	(0.7)	(9.1)
Gain on sale of long-lived assets		(6.8)
Asset impairment	1.2
Other	1.6	0.4
Changes in operating assets and liabilities, net of business acquired:
Trade accounts receivable	(20.9)	9.3
Inventories	(47.1)	(25.8)
Income taxes	21.4	(0.7)
Other current and non-current assets	10.9	(18.2)
Accrued compensation	(5.8)	(13.4)
Other current and non-current liabilities	25.8	3.0
Accounts payable	24.5	(23.9)
Net cash provided by operating activities	366.0	167.3
Cash flows used in investing activities:
Acquisition of business, net of cash acquired		(988.6)
Purchases of investments	(358.2)	(171.3)
Maturities of investments	181.5	93.3
Sales of investments	64.3	162.4
Proceeds from sale of assets		41.2
Purchases of property, plant and equipment	(59.9)	(44.7)
Net cash used in investing activities	(172.3)	(907.7)
Cash flows (used in) provided by financing activities:
Net proceeds from short and long-term borrowings	20.1	642.2
Payments on short and long-term borrowings	(77.0)	(107.8)
Net payments related to employee stock awards	(25.4)	(11.8)
Dividend payments	(33.0)	(32.6)
Net cash (used in) provided by financing activities	(115.3)	490.0
Effect of exchange rate changes on cash and cash equivalents	0.3	(7.6)
Increase (decrease) in cash and cash equivalents	78.7	(258.0)
Cash and cash equivalents at beginning of period	414.6	644.3
Cash and cash equivalents at end of period	$ 493.3	$ 386.3