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v3.8.0.1

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Operating activities |  |
Net income | $ 38,945 | $ 14,016
Adjustments to reconcile net income to net cash used in operating activities: |  |
Depreciation and amortization | 7,765 | 8,571
Amortization and impairment of other intangible assets | 2,270 | 2,493
Acquisition-related contingent consideration | 396 | 395
Provision for doubtful accounts | 5,676 | 3,551
Non-cash share-based compensation | 4,676 | 7,281
Non-cash interest expense and other | 591 | 508
Changes in operating assets and liabilities, net of effects from acquisitions: |  |
Accounts receivable, billed and unbilled | (61,677) | (52,489)
Notes receivable | 2,622 | 7,153
Prepaid expenses and other assets | (378) | 553
Accounts payable, accrued expenses and other | 9,348 | 287
Income taxes | 13,480 | 3,650
Accrued compensation | (92,501) | (92,561)
Billings in excess of services provided | (413) | 3,505
Net cash used in operating activities | (69,200) | (93,087)
Investing activities |  |
Purchases of property and equipment | (7,680) | (5,831)
Other | 27 | 127
Net cash used in investing activities | (7,653) | (5,704)
Financing activities |  |
Borrowings under revolving line of credit, net | 45,000 | 37,000
Deposits | 1,431 | 3,069
Purchase and retirement of common stock | (14,220) | (36,918)
Net issuance of common stock under equity compensation plans | 4,215 | (812)
Payments for acquisition-related contingent consideration | (2,502) | 0
Net cash provided by financing activities | 33,924 | 2,339
Effect of exchange rate changes on cash and cash equivalents | 5,012 | 1,253
Net decrease in cash and cash equivalents | (37,917) | (95,199)
Cash and cash equivalents, beginning of period | 189,961 | 216,158
Cash and cash equivalents, end of period | 152,044 | 120,959
Supplemental cash flow disclosures |  |
Cash paid for interest | 1,087 | 762
Cash paid for income taxes, net of refunds | 1,688 | 4,246
Non-cash investing and financing activities: |  |
Issuance of stock units under incentive compensation plans | $ 1,059 | $ 1,547

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets, combined with the amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of indefinite-lived intangible assets, other than goodwill, to fair value. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. + References No definition available. + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&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