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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 99,876 $ 125,334
Marketable securities 192,261 187,892
Accounts receivable 59,408 55,368
Unbilled receivables 100,435 125,698
Inventories 26,180 20,900
Prepaids and other current assets 14,603 12,022
Total current assets 492,763 527,214
Intangible assets, net 46,936 50,880
Goodwill 292,040 292,040
Property, plant and equipment, net 89,393 86,255
Operating lease right-of-use assets 22,696 24,143
Deferred tax assets 2,623 3,031
Unbilled receivables 12,548 25,222
Other assets 3,631 3,809
Total assets 962,630 1,012,594
Current liabilities:    
Accounts payable 18,117 24,815
Accrued salaries and benefits 15,906 20,502
Convertible notes 0 10,378
Deferred revenue 20,846 23,861
Income taxes payable 15,669 18,137
Operating lease liabilities 4,287 5,024
Other current liabilities 21,349 23,992
Total current liabilities 96,174 126,709
Long-term operating lease liabilities 28,127 29,079
Long-term income taxes payable 3,963 5,892
Deferred tax liabilities 26,658 24,964
Other long-term liabilities 45,979 46,653
Total liabilities 200,901 233,297
Commitments and contingencies (Notes 8, 10 and 14)
Stockholders’ equity:    
Convertible preferred stock, $.001 par value: Authorized: 5,000,000 shares; Issued and outstanding: no shares at March 31, 2023 and December 31, 2022 0 0
Common stock, $.001 par value: Authorized: 500,000,000 shares; Issued and outstanding: 108,845,179 shares at March 31, 2023 and 107,610,356 shares at December 31, 2022 109 108
Additional paid-in capital 1,286,570 1,297,408
Accumulated deficit (521,415) (513,256)
Accumulated other comprehensive loss (3,535) (4,963)
Total stockholders’ equity 761,729 779,297
Total liabilities and stockholders’ equity $ 962,630 $ 1,012,594