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Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Cash flows from operating activities: |  |
Net income | $ 19,179 | $ 33,328
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 44,228 | 34,267
Gain on sale of property and equipment | (29) | (87)
Stock-based compensation expense related to stock options and employee stock purchases | 5,515 | 4,801
Provision for deferred income tax | (924) | 5,785
Excess tax benefits from stock-based compensation | (2,138) | (1,428)
Change in accounts receivable, net | 404 | 2,285
Change in inventories | (44,330) | (167,630)
Change in prepaid expenses and other, net | 5,209 | 7,327
Change in trade accounts payable | 19,552 | 13,314
Change in accrued expenses | (14,725) | (35,201)
Draws on floor plan notes payable – trade, net | 4,789 | 36,067
Net cash provided by (used in) operating activities | 36,730 | (67,172)
Cash flows from investing activities: |  |
Acquisition of property and equipment | (82,532) | (78,516)
Proceeds from the sale of property and equipment | 332 | 1,042
Business acquisitions | (3,528) | (36)
Change in other assets | (66) | (644)
Net cash used in investing activities | (85,794) | (78,154)
Cash flows from financing activities: |  |
Draws on floor plan notes payable – non-trade, net | 33,002 | 77,889
Proceeds from long-term debt | 65,651 | 63,914
Principal payments on long-term debt | (45,585) | (34,962)
Principal payments on capital lease obligations | (6,446) | (5,610)
Excess tax benefits from stock-based compensation | 2,138 | 1,428
Proceeds from issuance of shares relating to employee stock options and employee stock purchases | 7,337 | 3,897
Common stock repurchased | (2,272) |
Net cash provided by financing activities | 53,825 | 106,556
Net increase (decrease) in cash and cash equivalents | 4,761 | (38,770)
Cash and cash equivalents, beginning of period | 198,773 | 207,775
Cash and cash equivalents, end of period | 203,534 | 169,005
Supplemental disclosure of cash flow information: |  |
Interest | 11,334 | 11,409
Income taxes, net of refunds | 1,360 | 2,598
Noncash investing activities: |  |
Assets acquired under capital leases | $ 4,124 | $ 4,624

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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: 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=31042434&loc=d3e3255-108585 + Details
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- Definition The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. 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 -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 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=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + 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 (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). + 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=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + 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=31042434&loc=d3e3291-108585 Reference 2: 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 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=31042434&loc=d3e3602-108585 + Details
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