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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Current Assets: |  |
Cash and cash equivalents | $ 1,055,496 | $ 840,305
Available for sale investments | 1,729 | 1,729
Accounts receivable, net of allowance for credit losses | 677,247 | 715,271
Unbilled revenue | 415,390 | 428,684
Other receivables | 32,289 | 35,394
Prepayments and other current assets | 71,200 | 53,477
Income taxes receivable | 32,037 | 28,118
Total current assets | 2,285,388 | 2,102,978
Other Assets: |  |
Property, plant and equipment, net | 166,244 | 174,343
Goodwill | 933,387 | 936,257
Operating right-of-use assets | 69,238 | 84,561
Other non-current assets | 22,445 | 20,773
Non-current income taxes receivable | 12,373 | 17,230
Non-current deferred tax asset | 12,282 | 12,705
Equity method investments | 3,751 | 4,534
Investments in equity-long term | 22,286 | 15,765
Intangible assets | 57,070 | 66,460
Total Assets | 3,584,464 | 3,435,606
Current Liabilities: |  |
Accounts payable | 37,818 | 51,113
Unearned revenue | 675,234 | 660,883
Other liabilities | 382,593 | 399,769
Income taxes payable | 9,396 | 12,178
Total current liabilities | 1,105,041 | 1,123,943
Other Liabilities: |  |
Non-current bank credit lines and loan facilities | 350,000 | 348,477
Non-current operating lease liabilities | 47,334 | 60,801
Non-current other liabilities | 26,541 | 26,366
Non-current government grants | 795 | 838
Non-current income taxes payable | 13,262 | 14,539
Non-current deferred tax liability | 13,548 | 10,406
Commitments and contingencies | 0 | 0
Total Liabilities | 1,556,521 | 1,585,370
Shareholders' Equity: |  |
Ordinary shares, par value 6 euro cents per share; 100,000,000 shares authorized, 52,958,063 shares issued and outstanding at June 30, 2021 and 52,788,093 shares issued and outstanding at December 31, 2020 | 4,592 | 4,580
Additional paid-in capital | 632,069 | 617,104
Other undenominated capital | 1,134 | 1,134
Accumulated other comprehensive income | (43,734) | (35,477)
Retained earnings | 1,433,882 | 1,262,895
Total Shareholders' Equity | 2,027,943 | 1,850,236
Total Liabilities and Shareholders' Equity | $ 3,584,464 | $ 3,435,606
Common Stock, Shares, Issued | 52,958,063 | 52,788,093
Ordinary shares, shares outstanding (in shares) | 52,958,063 | 52,788,093

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