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v3.10.0.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Operating Activities: |  |  |
Net earnings | $ 619,790 | $ 490,383 | $ 432,533
Adjustments to reconcile net earnings to net cash from operating activities: |  |  |
Provision for losses on accounts receivable | 3,808 | 5,356 | 2,607
Deferred income tax (benefit) expense | (12,031) | (43,695) | 15,835
Stock compensation expense | 56,147 | 50,908 | 45,217
Depreciation and amortization | 54,019 | 49,310 | 46,796
Other | 647 | (4,382) | (3,540)
Changes in operating assets and liabilities: |  |  |
Increase in accounts receivable | (214,971) | (184,771) | (102,297)
Increase in accounts payable and accrued expenses | 86,036 | 114,631 | 102,716
Increase in deferred contract costs | (42,097) | 0 | 0
Increase in contract liabilities | 43,928 | 0 | 0
(Decrease) increase in income taxes payable, net | (19,691) | 16,264 | (12,370)
(Increase) decrease in other current assets | (2,781) | (5,365) | 1,988
Net cash from operating activities | 572,804 | 488,639 | 529,485
Investing Activities: |  |  |
Purchase of short-term investments | (27) | (12) | (54)
Proceeds from maturities of short-term investments | 59 | 12 | 17
Purchase of property and equipment | (47,474) | (95,016) | (59,316)
Proceeds from sale of property and equipment | 215 | 84,405 | 229
Other, net | (1,172) | (1,074) | 5,928
Net cash from investing activities | (48,399) | (11,685) | (53,196)
Financing Activities: |  |  |
Proceeds from issuance of common stock | 182,732 | 205,092 | 185,313
Repurchases of common stock | (647,898) | (478,258) | (337,658)
Dividends paid | (156,840) | (150,495) | (145,123)
Payments Related to Tax Withholding for Share-based Compensation | (3,248) | 0 | 0
Payments to Noncontrolling Interests | (688) | 0 | 0
Distributions to noncontrolling interest | (1,796) | (904) | (1,335)
Net cash from financing activities | (627,738) | (424,565) | (298,803)
Effect of exchange rate changes on cash and cash equivalents | (24,031) | 24,275 | (10,847)
(Decrease) increase in cash and cash equivalents | (127,364) | 76,664 | 166,639
Cash and cash equivalents at beginning of year | 1,051,099 | 974,435 | 807,796
Cash and cash equivalents at end of year | 923,735 | 1,051,099 | 974,435
Supplemental Cash Flow Information: |  |  |
Cash paid for income taxes | $ 239,255 | $ 249,704 | $ 254,312

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