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v3.10.0.1

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Operating Activities: |  |  |  |
Net earnings | $ 163,067 | $ 120,606 | $ 440,213 | $ 322,928
Adjustments to reconcile net earnings to net cash from operating activities: |  |  |  |
Provision for losses on accounts receivable | 1,969 | 1,741 | 2,232 | 3,187
Deferred income tax expense | (23,610) | (28,854) | (17,522) | (16,000)
Stock compensation expense | 13,902 | 11,210 | 43,171 | 39,036
Depreciation and amortization | 13,335 | 12,272 | 40,833 | 36,241
Other, net | 666 | 377 | 770 | (148)
Changes in operating assets and liabilities: |  |  |  |
Increase in accounts receivable | (210,092) | (126,102) | (156,321) | (123,790)
Increase in accounts payable and accrued expenses | 115,629 | 61,833 | 127,860 | 96,132
Increase in deferred contract costs | (34,623) | 0 | (51,235) | 0
Increase in contract liabilities | 36,256 | 0 | 49,149 | 0
Increase (decrease) in income taxes payable, net | 9,292 | 38,149 | (9,258) | 10,814
Decrease (increase) in other current assets | 930 | (5,872) | 862 | (6,147)
Net cash from operating activities | 86,721 | 85,360 | 470,754 | 362,253
Investing Activities: |  |  |  |
Purchase of property and equipment | (11,733) | (34,462) | (37,642) | (67,603)
Other, net | 1,109 | (261) | (886) | (892)
Net cash from investing activities | (10,624) | (34,723) | (38,528) | (68,495)
Financing Activities: |  |  |  |
Proceeds from issuance of common stock | 47,806 | 65,915 | 169,566 | 162,781
Repurchases of common stock | (147,828) | (202,776) | (555,760) | (340,736)
Dividends paid | 0 | 0 | 79,180 | 75,726
Payments for taxes related to net share settlement of equity awards | 0 | 0 | (3,215) | 0
Distributions to noncontrolling interest | (633) | 0 | (633) | 0
Purchase of noncontrolling interest | (613) | 0 | (613) | 0
Net cash from financing activities | (101,268) | (136,861) | (469,835) | (253,681)
Effect of exchange rate changes on cash and cash equivalents | (5,071) | 4,758 | (22,878) | 18,932
(Decrease) increase in cash and cash equivalents | (30,242) | (81,466) | (60,487) | 59,009
Cash and cash equivalents at beginning of period | 1,020,854 | 1,114,910 | 1,051,099 | 974,435
Cash and cash equivalents at end of period | 990,612 | 1,033,444 | 990,612 | 1,033,444
Taxes Paid: |  |  |  |
Income taxes | $ 59,313 | $ 58,257 | $ 183,444 | $ 190,911

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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect 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 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration