| Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net income including noncontrolling interests | 137 | 119 | 89 | 127 | 208 | 291 |
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| Depreciation and amortization | 126 | 128 | 144 | 121 | 120 | 99 |
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| Amortization of debt issue costs | 1 | 1 | 3 | 3 | 3 | 8 |
|---|
| Loss (gain) on disposal of property and equipment | -1 | -0 | -0 | 0 | -0 | -1 |
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| Convertible debt repurchase loss | - | - | - | - | - | -18 |
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| Provision for doubtful accounts | 0 | -2 | 0 | 0 | 0 | - |
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| Deferred taxes | -123 | 1 | -3 | -1 | -9 | 6 |
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| Foreign currency transaction gains and losses | -4 | 0 | -5 | -2 | 0 | -7 |
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| Equity in losses (earnings) of unconsolidated joint ventures | 42 | 30 | 37 | 16 | -48 | -23 |
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| Proceeds from Equity Method Investment, Distribution | 51 | 41 | 24 | 28 | 49 | 40 |
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| Stock-based compensation | 8 | 15 | 20 | 23 | 34 | 56 |
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| Contributions of treasury stock | 54 | 55 | 55 | 55 | 58 | 60 |
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| Accounts receivable | 30 | 9 | -100 | 117 | 176 | 163 |
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| Contract assets | 50 | -9 | -1 | 32 | 120 | -32 |
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| Prepaid expenses and other assets | - | -11 | 19 | 1 | 95 | -36 |
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| Accounts payable | -17 | 1 | -32 | -1 | 24 | -43 |
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| Accrued expenses and other current liabilities | 78 | 3 | -75 | 4 | 163 | 80 |
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| Contract liabilities | 20 | -30 | -30 | 41 | 84 | -11 |
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| Income taxes | -5 | -3 | 3 | -4 | 3 | -0 |
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| Other long-term liabilities | 29 | -29 | -44 | 7 | 13 | -16 |
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| Net cash provided by operating activities | 220 | 289 | 206 | 238 | 408 | 524 |
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| Capital expenditures | 68 | 34 | 21 | 31 | 40 | 49 |
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| Proceeds from sale of property and equipment | 4 | 2 | 1 | 1 | 1 | 0 |
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| Payments for acquisitions, net of cash acquired | 495 | 303 | 198 | 379 | 222 | 429 |
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| Investments in unconsolidated joint ventures | 25 | 11 | 38 | 18 | 120 | 134 |
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| Return of investments in unconsolidated joint ventures | 12 | 0 | 1 | 9 | 5 | 55 |
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| Proceeds from Sale of Equity Method Investments | - | - | 15 | - | 0 | - |
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| Net cash used in investing activities | -571 | -346 | -241 | -417 | -376 | -557 |
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| Proceeds from Lines of Credit | 597 | 213 | - | 916 | 621 | 153 |
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| Proceeds from delayed draw term loan | - | - | - | 350 | - | - |
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| Repayments of borrowings under credit agreement | 777 | 213 | 50 | 916 | 621 | 153 |
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| Repayment of private placement debt | - | - | - | 200 | - | - |
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| Payments for acquired warrants | - | - | - | 11 | - | - |
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| Proceeds from Convertible Debt | - | 400 | - | - | - | - |
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| Proceeds from issuance of convertible notes due 2029 | - | - | - | - | - | 800 |
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| Repurchases of convertible notes due 2025 | - | - | - | - | - | 498 |
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| Payments for debt costs and credit agreement | 0 | - | 2 | 1 | - | 19 |
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| Payments for purchase of bond hedges | - | 55 | - | - | - | - |
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| Transaction costs paid in connection with convertible notes issuance | - | 10 | - | - | - | - |
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| Proceeds from Noncontrolling Interests | 10 | 2 | 2 | 10 | 3 | 2 |
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| Distributions to noncontrolling interests | 42 | 6 | 38 | 24 | 12 | 29 |
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| Repurchases of common stock | - | - | 22 | 22 | 11 | 25 |
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| Taxes paid on vested stock | - | 1 | 2 | 7 | 7 | 23 |
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| Capped call transactions | - | - | - | - | - | 88 |
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| Bond hedge termination | - | - | - | - | - | 196 |
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| Redemption of warrants | - | - | - | - | - | -105 |
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| Proceeds from issuance of common stock | - | 4 | 6 | 5 | 6 | 8 |
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| Net cash provided by (used in) financing activities | 266 | 348 | -107 | 100 | -22 | 219 |
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| Effect of exchange rate changes | - | 1 | -1 | -2 | 1 | -5 |
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| Net increase (decrease) in cash, cash equivalents and restricted cash | -86 | 292 | -143 | -81 | 10 | 181 |
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| Interest | 23 | 14 | 15 | 21 | 30 | 34 |
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| Income Taxes Paid, Net | 60 | 55 | 22 | 32 | 74 | 65 |
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