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Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Operating activities |  |  |  |
Net income | $ 174,937 | [1],[2] | $ 123,693 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |
Depreciation | 12,397 | [2] | 10,667 |
Stock-based compensation | 14,403 | [2] | 23,093 |
Provision for losses on accounts receivable | 11,997 | [2] | 12,988 |
Amortization of deferred financing costs and discounts | 1,339 | [2] | 1,914 |
Amortization of intangible assets | 57,836 | [2] | 52,654 |
Amortization of premium on receivables | 1,269 | [2] | 1,544 |
Deferred income taxes | (4,829) | [2] | (3,453) |
Investment loss | 0 | [1],[2] | 2,377 |
Other | (57) | [2] | 0 |
Changes in operating assets and liabilities (net of acquisitions): |  |  |  |
Accounts and other receivables | (288,152) | [2] | (236,564) |
Prepaid expenses and other current assets | 32,074 | [2] | (16,453) |
Other assets | (7,101) | [2] | (2,673) |
Accounts payable, accrued expenses and customer deposits | 194,589 | [2] | 103,711 |
Net cash provided by operating activities | 200,702 | [2] | 73,498 |
Investing activities |  |  |  |
Acquisitions, net of cash acquired | (3,875) | [2] | 0 |
Purchases of property and equipment | (15,214) | [2] | (14,796) |
Other | (3,642) | [2] | (6,327) | $ (39,000)
Net cash used in investing activities | (22,731) | [2] | (21,123) |
Financing activities |  |  |  |
Proceeds from issuance of common stock | 19,975 | [2] | 15,230 |
Repurchase of common stock | (88,292) | [2] | 0 |
Borrowings on securitization facility, net | 18,000 | [2] | 85,000 |
Principal payments on notes payable | (34,500) | [2] | (33,363) |
Borrowings from revolver | 420,258 | [2] | 90,000 |
Payments on revolver | (439,351) | [2] | (159,949) |
Borrowings on swing line of credit, net | 5,009 | [2] | 21,639 |
Other | (92) | [2] | 537 |
Net cash (used in) provided by financing activities | (98,993) | [2] | 19,094 |
Effect of foreign currency exchange rates on cash | 12,653 | [2] | 19,754 |
Net increase in cash and cash equivalents and restricted cash | 91,631 | [2] | 91,223 |
Cash and cash equivalents and restricted cash, beginning of period | 1,130,870 |  | 643,770 | 643,770
Cash and cash equivalents and restricted cash, end of period | 1,222,501 | [2] | 734,993 | $ 1,130,870
Supplemental cash flow information |  |  |  |
Cash paid for interest | 35,634 | [2] | 33,190 |
Cash paid for income taxes | $ 16,830 | [2] | $ 88,503 |
[1] | Reflects the January 1, 2018 adoption of Accounting Standards Update 2014-09, "Revenue from Contracts with Customers (Topic 606)" using the modified retrospective transition method. As a result of the application of the modified retrospective transition method, the Company's prior period results within its annual report on Form 10-K and quarterly reports on Form 10-Q will not be restated to reflect the impact of Topic 606. See footnote 1.
[2] | Reflects the impact of the Company's adoption of Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230), which was adopted by the Company on January 1, 2018 and applied retrospectively to results for 2017. The adoption of Topic 230 resulted in the statement of cash flows presenting the changes in the total of cash, cash equivalents and restricted cash. As a result, the Company will no longer present transfers between cash and cash equivalents and restricted cash in the consolidated statement of cash flows.

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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition Amount of cash inflow (outflow) from long-term debt wholly or partially secured by collateral. Excludes tax exempt secured debt. + References No definition available. + Details
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- Definition The cash inflow from a borrowing having initial term of repayment of more than three months but less than one year or one operating cycle (if the normal cycle is more than one year). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: 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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 + Details
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- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash outflow from a repayment of a borrowing having initial term of repayment of more than three months but less than one year or one operating cycle (if the normal cycle is more than one year). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + 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
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- References No definition available. + Details
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