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v3.22.0.1

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |  |
Net income | $ 784,830 | $ 814,888 | $ 612,299
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation of property and equipment | 47,940 | 46,352 | 46,330
Stock-based compensation | 53,439 | 48,243 | 50,626
Other Noncash Income (Expense) | 6,027 | (9,108) | (11,926)
Changes in operating assets and liabilities |  |  |
Prepaid expenses and other assets | (14,058) | (9,214) | (3,279)
Accounts payable and accrued liabilities | 15,495 | 2,227 | (24)
Deferred revenues | 90,471 | 29,009 | 16,191
Net deferred income taxes and other long term tax liabilities | (176,992) | (192,214) | 43,675
Net Cash Provided by (Used in) Operating Activities | 807,152 | 730,183 | 753,892
Cash flows from investing activities: |  |  |
Proceeds from maturities and sales of marketable securities | 2,654,457 | 2,305,732 | 2,247,904
Purchases of marketable securities | (2,870,670) | (2,355,405) | (2,030,521)
Purchases of property and equipment | (53,033) | (43,395) | (40,316)
Payments for (Proceeds from) Businesses and Interest in Affiliates | 0 | 20,810 | (9,872)
Net cash provided by (used in) investing activities | (269,246) | (72,258) | 167,195
Cash flows from financing activities: |  |  |
Repayment of Borrowings | (750,000) | 0 | 0
Proceeds from Debt, Net of Issuance Costs | 741,053 | 0 | 0
Repurchases of common stock | (722,587) | (777,454) | (782,583)
Proceeds from issuance of common stock from option exercises and employee stock purchase plans | 12,404 | 12,577 | 13,152
Proceeds from (Payments for) Other Financing Activities | 0 | 0 | (872)
Net cash used in financing activities | (719,130) | (764,877) | (770,303)
Effect of exchange rate changes on cash and cash equivalents | (561) | (48) | 64
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect | (181,785) | (107,000) | 150,848
Cash and cash equivalents at end of period | 223,487 | 401,194 |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 228,816 | 410,601 | 517,601
Supplemental cash flow disclosures: |  |  |
Cash paid for interest, net of capitalized interest | 85,578 | 87,354 | 87,683
Cash paid for income taxes, net of refunds received | $ 178,351 | $ 132,683 | $ 89,974

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