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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income | $ 50,985 | $ 31,437 | $ 19,381
Adjustments to reconcile net income to net cash provided by operating activities |  |  |
Depreciation | 7,196 | 3,510 | 3,744
Amortization of Intangible Assets | 10,886 | 6,572 | 5,824
Gain on sale of equipment | 0 | 0 | (188)
Write-off of debt issuance costs | 654 | 0 | 0
Compensation expense for restricted stock | 1,955 | 1,256 | 973
Tax benefit related to vesting of restricted stock | (680) | (198) | (215)
Deferred income taxes | 1,230 | 2,426 | 3,353
Changes in operating assets and liabilities, net of assets and liabilities acquired in business acquisitions: |  |  |
Trade accounts receivable | (1,978) | (21,548) | (14,528)
Inventories | (3,470) | (4,258) | 2,028
Prepaid expenses and other assets | (2,211) | (2,617) | 1,165
Accounts payable and accrued expenses | (13,361) | 9,248 | 2,371
Net cash provided by operating activities | 51,206 | 25,828 | 23,908
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchase of property and equipment | (14,110) | (4,096) | (1,184)
Proceeds from the sale of equipment | 0 | 0 | 1,428
Purchase of long-term investment | (105) | (1,572) | 0
Acquisitions of businesses, net of cash acquired | (144,879) | (18,434) | (18,394)
Net cash used in investing activities | (159,094) | (24,102) | (18,150)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from debt | 465,163 | 224,307 | 141,216
Principal payments on revolving line of credit and other long-term debt | (345,231) | (223,959) | (148,798)
Dividends paid | (90) | (90) | (90)
Purchase of treasury stock | (3,422) | (1,445) | 0
Proceeds from exercise of stock options | 0 | 0 | 125
Tax benefit related to vesting of restricted stock | 680 | 198 | 215
Net cash provided by (used in) financing activities | 117,100 | (989) | (7,332)
EFFECT OF FOREIGN CURRENCY ON CASH | (264) | 0 | 0
INCREASE (DECREASE) IN CASH | 8,948 | 737 | (1,574)
CASH AT BEGINNING OF YEAR | 1,507 | 770 | 2,344
CASH AT END OF YEAR | 10,455 | 1,507 | 770
Supplemental Cash Flow Information [Abstract] |  |  |
Cash paid for Interest | 4,285 | 3,490 | 5,240
Cash paid for Income Taxes | 32,311 | 14,190 | 8,342
Cash received from Income Tax Refunds | $ 380 | $ 293 | $ 250

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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. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of increase (decrease) in cash. Cash is the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References No definition available. + Details
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- Definition The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=6889476&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6510177 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 + Details
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