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v3.10.0.1

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Cash flows from operating activities: |  |
Net income | $ 389,834 | $ 282,245
Adjustments to reconcile net income to net cash provided by operating activities (See Note 1) | 28,064 | 34,142
Net cash provided by operating activities | 417,898 | 316,387
Cash flows from investing activities: |  |
Additions to property and equipment | (21,652) | (20,318)
Additions to capitalized software | (33,371) | (48,573)
Purchases of marketable securities | (122,259) | (50,235)
Prepayments and maturities of marketable securities | 116,568 | 52,644
Cash paid for acquisition, net of cash acquired | (5,794) | (80,131)
Other investing activities | (10,900) | (1,450)
Net cash used in investing activities | (77,408) | (148,063)
Cash flows from financing activities: |  |
Borrowings under revolving credit facility | 0 | 40,000
Repayments under revolving credit facility | (30,000) | 0
Purchase and retirement of common stock | (290,563) | (186,494)
Proceeds from issuance of common stock | 78,667 | 41,626
Payment of dividends | (94,318) | (88,862)
Net cash used in financing activities | (336,214) | (193,730)
Effect of exchange rate changes on cash, cash equivalents and restricted cash | (6,552) | 14,679
Net decrease in cash, cash equivalents and restricted cash | (2,276) | (10,727)
Cash, cash equivalents and restricted cash, beginning of period | 747,752 | 699,201
Cash, cash equivalents and restricted cash, end of period | $ 745,476 | $ 688,474

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