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v3.21.2

Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Cash flows from operating activities: |  |
Net income | $ 263,248 | $ 210,308
Adjustments to reconcile net income to net cash provided by operating activities (See Note 1) | 61,749 | 53,824
Net cash provided by operating activities | 324,997 | 264,132
Cash flows from investing activities: |  |
Additions to property and equipment | (15,469) | (34,442)
Additions to capitalized software | (12,271) | (12,533)
Purchases of marketable securities | (81,541) | (60,764)
Prepayments and maturities of marketable securities | 64,194 | 71,782
Sales of marketable securities | 0 | 64
Other investing activities | (11,000) | (1,500)
Net cash used in investing activities | (56,087) | (37,393)
Cash flows from financing activities: |  |
Payment of contingent consideration | (3,965) | (633)
Purchase and retirement of common stock | (197,322) | (219,404)
Proceeds from issuance of common stock | 28,867 | 24,587
Payment of dividends | (105,516) | (103,914)
Net cash used in financing activities | (277,936) | (299,364)
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 2,578 | (10,545)
Net decrease in cash, cash equivalents and restricted cash | (6,448) | (83,170)
Cash, cash equivalents and restricted cash, beginning of period | 787,727 | 844,547
Cash, cash equivalents and restricted cash, end of period | $ 781,279 | $ 761,377

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