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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 134,036 $ 99,957
Short-term available-for-sale investments 559,822 421,705
Accounts receivable, net 49,975 53,046
Inventories, net 67,209 64,650
Prepaid expenses and other current assets 11,310 12,265
Total current assets 822,352 651,623
Long-term available-for-sale investments 0 95,459
Fixed assets, net 159,235 136,688
Right-of-use assets, net 69,790 74,492
Goodwill 99,547 99,547
Intangible assets, net 90,621 96,521
Deferred tax assets 93,265 106,164
Investments and other assets 21,192 14,019
Total assets 1,356,002 1,274,513
Current liabilities:    
Accounts payable 7,895 10,431
Accrued expenses 50,798 70,974
Lease liabilities 5,879 7,425
Convertible senior notes 155,751 149,648
Contingent consideration 5,070 14,736
Income taxes payable 395 114
Total current liabilities 225,788 253,328
Convertible senior notes 326,146 313,030
Lease liabilities 66,784 71,025
Contingent consideration 11,129 13,610
Other liabilities 7,553 3,832
Total liabilities 637,400 654,825
Commitments and contingencies (Note 15)
Stockholders’ equity:    
Preferred stock, par value $0.001; 5,000,000 shares authorized; none issued and outstanding at September 30, 2021 and December 31, 2020 0 0
Common stock, par value $0.001; 250,000,000 shares authorized; 44,523,410 shares issued and outstanding at September 30, 2021; 43,636,929 shares issued and outstanding at December 31, 2020 45 44
Additional paid-in capital 925,169 873,201
Accumulated deficit (206,765) (253,875)
Accumulated other comprehensive income 153 318
Total stockholders’ equity 718,602 619,688
Total liabilities and stockholders’ equity $ 1,356,002 $ 1,274,513