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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Cash flows from operating activities: |  |  |
Net income | $ 113,655 | $ 112,629 | $ 133,285
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Stock-based compensation | 18,698 | 19,260 | 20,141
Tax benefit from stock based compensation | (10,510) | (2,978) | (4,277)
Depreciation and amortization | 20,757 | 15,077 | 12,979
Loss on disposal of fixed assets | 1,780 | 291 | 905
Goodwill, Impairment Loss | 3,045 | 0 | 0
Deferred taxes | 5,894 | 2,875 | 7,106
Accrued interest on note receivable – related party | (71) | 0 |
Increase (Decrease) in Accrued Interest Receivable, Net | 71 | 156 | 0
Repayment of Notes Receivable from Related Parties | 409 | 409 | 0
Deferred rent expense | 440 | 2,769 | 1,914
Loss (gain) on sale of marketable securities | 67 | 677 | (1,083)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | (5,576) | (2,139) | 0
Changes in: |  |  |
Accounts receivable | (11,071) | (144) | 33,672
Due from factor | 7,281 | 3,734 | (51,394)
Inventories | (9,403) | (1,841) | (10,013)
Prepaid expenses, prepaid taxes, deposits and other | 4,784 | (294) | (8,484)
Accounts payable and accrued expenses | (8,643) | 3,777 | 20,837
Accrued incentive compensation | 468 | (1,910) | (135)
Other liabilities | 2,716 | (61) | 0
Net cash provided by operating activities | 134,720 | 151,975 | 155,453
Cash flows from investing activities: |  |  |
Purchases of property and equipment | (19,459) | (18,341) | (20,746)
Purchases of marketable securities | (48,891) | (137,348) | (63,310)
Proceeds from Collection of Notes Receivable | 466 | 893 | 0
Maturity/sale of marketable securities | 43,353 | 128,663 | 43,675
Acquisitions | (9,129) | (81,885) | 0
Net cash used in investing activities | (33,660) | (108,018) | (40,381)
Cash flows from financing activities: |  |  |
Proceeds from exercise of stock options | 21,301 | 4,943 | 5,802
Tax benefit from the exercise of options | 10,510 | 2,978 | 4,277
business combinations contingent liability payment | (6,270) | (8,475) | (11,481)
Common stock purchased for treasury | (135,637) | (142,228) | (102,172)
Net cash provided by financing activities | (110,096) | (142,782) | (103,574)
Net decrease in cash and cash equivalents | (9,036) | (98,825) | 11,498
Cash and cash equivalents – beginning of period | 81,450 | 180,275 |
Cash and cash equivalents – end of period | 72,414 | 81,450 | 180,275
Cash paid during the year for: |  |  |
Interest | 469 | 211 | 128
Income taxes | $ 39,424 | $ 49,829 | $ 57,147

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The aggregate cash inflow comprised of the amount received from (a) employees to acquire the entity's shares under incentive awards, including stock option exercises and restricted stock arrangements, and (b) the excess tax benefit arising from such transactions. + References No definition available. + Details
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- Definition The cash inflow associated with principal collections from 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 -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition The cash inflow from a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + 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=56944662&loc=d3e3602-108585 + Details
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- Definition Difference between actual rental income due and rental income recognized on a straight-line basis. + 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=56944662&loc=d3e3602-108585 + Details
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