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v3.10.0.1

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2018 | Jun. 30, 2017
Cash flows from operating activities: |  |
Net income | $ 261,515 | $ 180,506
Adjustments to reconcile net income to net cash provided by operating activities (See Note 1) | 1,361 | 4,351
Net cash provided by operating activities | 262,876 | 184,857
Cash flows from investing activities: |  |
Additions to property and equipment | (12,671) | (10,247)
Additions to capitalized software | (24,613) | (33,292)
Purchases of marketable securities | (74,957) | (28,703)
Prepayments and maturities of marketable securities | 64,626 | 26,811
Cash paid for acquisition, net of cash acquired | (5,794) | 0
Other investing activities | (10,500) | (1,450)
Net cash used in investing activities | (63,909) | (46,881)
Cash flows from financing activities: |  |
Repayments under revolving credit facility | (30,000) | 0
Purchase and retirement of common stock | (189,372) | (122,066)
Proceeds from issuance of common stock | 69,958 | 29,127
Payment of dividends | (94,318) | (88,862)
Net cash used in financing activities | (243,732) | (181,801)
Effect of exchange rate changes on cash, cash equivalents and restricted cash | (6,036) | 8,488
Net decrease in cash, cash equivalents and restricted cash | (50,801) | (35,337)
Cash, cash equivalents and restricted cash, beginning of period | 747,752 | 699,201
Cash, cash equivalents and restricted cash, end of period | $ 696,951 | $ 663,864

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- Definition The sum of adjustments which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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