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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 145,054 | $ 159,965
Marketable securities | 152,167 | 202,814
Total cash, cash equivalents, and marketable securities | 297,221 | 362,779
Accounts receivable | 255,150 | 182,717
Unbilled receivables | 213,719 | 226,714
Other current assets | 80,388 | 68,008
Total current assets | 846,478 | 840,218
Unbilled receivables | 95,806 | 129,789
Goodwill | 81,399 | 81,923
Other long-term assets | 333,989 | 541,601
Total assets | 1,357,672 | 1,593,531
Current liabilities: |  |
Accounts payable | 18,195 | 15,281
Accrued expenses | 50,355 | 63,890
Accrued compensation and related expenses | 127,728 | 120,946
Deferred revenue | 325,212 | 275,844
Other current liabilities | 17,450 | 9,443
Total current liabilities | 538,940 | 485,404
Convertible senior notes, net | 593,609 | 590,722
Operating lease liabilities | 79,152 | 87,818
Other long-term liabilities | 15,128 | 13,499
Total liabilities | 1,226,829 | 1,177,443
Commitments and contingencies (Note 20) |  |
Stockholders’ equity: |  |
Preferred stock, $0.01 par value, 1,000 shares authorized; none issued | 0 | 0
Common stock, $0.01 par value, 200,000 shares authorized; 82,436 and 81,712 shares issued and outstanding as of December 31, 2022 and 2021, respectively | 824 | 817
Additional paid-in capital | 229,602 | 145,810
(Accumulated deficit) retained earnings | (76,513) | 276,449
Accumulated other comprehensive (loss) |  |
Net unrealized gain on available-for-sale securities, net of tax | 517 | 686
Foreign currency translation adjustments | (23,587) | (7,674)
Total stockholders’ equity | 130,843 | 416,088
Total liabilities and stockholders’ equity | $ 1,357,672 | $ 1,593,531

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