Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 608.3	$ 414.6
Short-term investments	227.7	109.4
Trade accounts receivable, net of allowance for doubtful accounts of $2.0 and $1.8 at December 31, 2020 and 2019, respectively	392.7	341.1
Inventories	501.4	462.1
Other current assets	74.3	106.3
Total current assets	1,804.4	1,433.5
Property, plant and equipment, net	284.3	241.9
Right-of-use assets	184.4	64.5
Goodwill	1,066.4	1,058.5
Intangible assets, net	512.2	564.6
Long-term investments	6.5	5.8
Other assets	45.6	47.5
Total assets	3,903.8	3,416.3
Current liabilities:
Short-term debt	14.5	12.1
Accounts payable	110.6	88.4
Accrued compensation	117.9	100.9
Income taxes payable	18.3	15.4
Lease liability	15.8	20.6
Deferred revenue and customer advances	31.2	21.5
Other current liabilities	65.6	58.8
Total current liabilities	373.9	317.7
Long-term debt, net	815.0	871.7
Non-current deferred taxes	59.2	72.4
Non-current accrued compensation	49.5	43.9
Non-current lease liability	187.4	44.8
Other non-current liabilities	57.9	42.5
Total liabilities	1,542.9	1,393.0
Commitments and contingencies (Note 23)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2,000,000 shares authorized; none issued and outstanding
Common stock, no par value, 200,000,000 shares authorized; 55,196,501 and 54,596,183 shares issued and outstanding at December 31, 2020 and 2019, respectively	0.1	0.1
Additional paid-in capital	873.2	864.3
Retained earnings	1,487.3	1,181.2
Accumulated other comprehensive income (loss)	0.3	(22.3)
Total stockholders’ equity	2,360.9	2,023.3
Total liabilities and stockholders' equity	$ 3,903.8	$ 3,416.3