Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 112.2	$ 178.3
Restricted cash	0.2	1.0
Accounts receivable, net	262.5	143.7
Inventories	205.8	142.8
Income tax receivable, net	8.6	2.4
Prepaid expenses and other current assets	31.5	17.2
Total current assets	620.8	485.4
Property, plant and equipment, net	510.2	407.2
Intangible assets, net	761.6	119.6
In process research and development	50.0	0.0
Goodwill	259.7	49.1
Deferred tax assets, net	13.4	2.8
Other assets	13.7	6.1
Total assets	2,229.4	1,070.2
Current liabilities:
Accounts payable	80.7	41.8
Accrued expenses and other current liabilities	30.7	4.8
Accrued compensation	58.2	37.9
Long-term indebtedness, current portion	10.1	0.0
Contingent consideration, current portion	5.6	2.4
Income taxes payable, net	4.5	0.0
Contract liability, current	10.6	13.2
Total current liabilities	200.4	100.1
Contingent consideration, net of current portion	54.4	9.9
Long-term indebtedness	784.5	13.5
Deferred tax liability	67.5	0.0
Income taxes payable	11.2	12.5
Deferred revenue, net of current portion	62.5	17.3
Other liabilities	38.0	4.6
Total liabilities	1,218.5	157.9
Stockholders' equity:
Preferred stock, $0.001 par value; 15.0 shares authorized, 0 shares issued and outstanding at both December 31, 2018 and 2017	0.0	0.0
Common stock, $0.001 par value; 200.0 shares authorized, 52.4 shares issued and 51.2 shares outstanding at December 31, 2018; 50.6 shares issued and 49.4 shares outstanding at December 31, 2017	0.1	0.1
Treasury stock, at cost, 1.2 common shares at both December 31, 2018 and 2017	(39.6)	(39.5)
Additional paid-in capital	688.6	618.3
Accumulated other comprehensive loss	(5.5)	(3.7)
Retained earnings	367.3	337.1
Total stockholders' equity	1,010.9	912.3
Total liabilities and stockholders' equity	$ 2,229.4	$ 1,070.2