Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 701,054	$ 177,254
Marketable securities	530,062	146,401
Accounts receivable, net	140,046	130,667
Inventory	69,424	61,724
Prepaid expenses and other current assets	43,732	40,913
Total current assets	1,484,318	556,959
Long-term Assets:
Property, plant and equipment, net	465,476	455,325
Operating lease right-of-use assets	124,369	126,444
Goodwill	1,237,161	1,203,197
Intangible assets, net	1,128,261	1,143,550
Other long-term assets, net	21,540	20,293
Total assets	4,461,125	3,505,768
Current Liabilities:
Accounts payable	38,048	25,973
Accrued liabilities	166,596	193,329
Operating lease liabilities, current portion	8,663	7,891
Debt, current portion	24,565	834
Other current liabilities	5,709	8,467
Total current liabilities	243,581	236,494
Long-term Liabilities:
Convertible notes, net	1,514,306	803,605
Long-term debt, less current portion	0	24,032
Other long-term liabilities	47,252	34,911
Operating lease liabilities, less current portion	118,333	118,665
Total liabilities	1,923,472	1,217,707
Commitments and contingencies
Stockholders’ Equity:
Preferred stock, $0.01 par value Authorized—5,000,000 shares issued and outstanding—no shares at March 31, 2020 and December 31, 2019	0	0
Common stock, $0.01 par value Authorized—200,000,000 shares issued and outstanding—149,446,864 and 147,625,696 shares at March 31, 2020 and December 31, 2019	1,495	1,477
Additional paid-in capital	3,763,328	3,406,440
Accumulated other comprehensive loss	(1,717)	(100)
Accumulated deficit	(1,225,453)	(1,119,756)
Total stockholders’ equity	2,537,653	2,288,061
Total liabilities and stockholders’ equity	$ 4,461,125	$ 3,505,768