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v3.20.4

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities: |  |  |
Net income | $ 814,888 | $ 612,299 | $ 582,489
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation of property and equipment | 46,352 | 46,330 | 48,367
Stock-based compensation | 48,243 | 50,626 | 52,504
Investment Income, Amortization of Discount | (6,131) | (14,777) | (18,259)
Gain (Loss) on Disposition of Business | (6,402) | (817) | (54,840)
Other Operating Activities, Cash Flow Statement | 3,425 | 3,668 | 14,646
Changes in operating assets and liabilities |  |  |
Prepaid expenses and other assets | (9,214) | (3,279) | 1,041
Accounts payable and accrued liabilities | 2,227 | (24) | (2,130)
Deferred revenues | 29,009 | 16,191 | 19,825
Net deferred income taxes and other long term tax liabilities | (192,214) | 43,675 | 54,124
Net Cash Provided by (Used in) Operating Activities | 730,183 | 753,892 | 697,767
Cash flows from investing activities: |  |  |
Proceeds from maturities and sales of marketable securities | 2,305,732 | 2,247,904 | 4,031,809
Purchases of marketable securities | (2,355,405) | (2,030,521) | (2,976,752)
Purchases of property and equipment | (43,395) | (40,316) | (37,007)
Payments for (Proceeds from) Businesses and Interest in Affiliates | 20,810 | (9,872) | 52,240
Other investing activities | 0 | 0 | (160)
Net cash provided by (used in) investing activities | (72,258) | 167,195 | 1,070,130
Cash flows from financing activities: |  |  |
Repurchases of common stock | (777,454) | (782,583) | (638,152)
Proceeds from issuance of common stock from option exercises and employee stock purchase plans | 12,577 | 13,152 | 12,836
Repayments of Subordinated Debt | 0 | 0 | (1,250,009)
Proceeds from (Payments for) Other Financing Activities | 0 | (872) | 0
Net cash used in financing activities | (764,877) | (770,303) | (1,875,325)
Effect of exchange rate changes on cash and cash equivalents | (48) | 64 | (958)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect | (107,000) | 150,848 | (108,386)
Cash and cash equivalents at end of period | 401,194 | 508,196 |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 410,601 | 517,601 | 366,753
Supplemental cash flow disclosures: |  |  |
Cash paid for interest, net of capitalized interest | 87,354 | 87,683 | 117,956
Cash paid for income taxes, net of refunds received | $ 132,683 | $ 89,974 | $ 84,906

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