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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Cash flows from operating activities: |  |
Net income | $ 27,887 | $ 19,899
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 2,707 | 2,528
Bad debt provision | 650 | 1,350
Deferred income benefits | (1,305) | (2,405)
Stock-based compensation expense | 1,196 | 1,144
Amortization of premium on marketable securities | 303 | 346
Unrealized loss on marketable securities | 0 | 82
Unrealized gain on deferred compensation fund investments | (759) | (937)
Changes in operating assets and liabilities: |  |
Accounts and notes receivable | (26,812) | (7,891)
Prepaid income taxes | 0 | 3,740
Inventories and supplies | 27 | (1,906)
Deferred compensation funding | (1,926) | (1,078)
Accounts payable and other accrued expenses | 8,454 | 10,759
Accrued payroll, accrued and withheld payroll taxes | (1,989) | 536
Accrued insurance claims | 1,137 | 3,485
Deferred compensation liability | 2,922 | 2,360
Income taxes payable | 2,573 | 0
Prepaid expenses and other assets | (1,085) | (4,630)
Net cash provided by operating activities | 13,980 | 27,382
Cash flows from investing activities: |  |
Disposals of fixed assets | 150 | 10
Additions to property and equipment | (1,702) | (1,825)
Purchases of marketable securities | (4,597) | (6,362)
Sales of marketable securities | 3,450 | 15,784
Net cash (used in) provided by investing activities | (2,699) | 7,607
Cash flows from financing activities: |  |
Dividends paid | (22,931) | (21,803)
Reissuance of treasury stock pursuant to Dividend Reinvestment Plan | 53 | 59
Tax benefit from equity compensation plans | 1,128 | 1,051
Proceeds from the exercise of stock options | 4,680 | 2,664
Net cash used in financing activities | (17,070) | (18,029)
Net (decrease) increase in cash and cash equivalents | (5,789) | 16,960
Cash and cash equivalents at beginning of the period | 68,949 | 38,639
Cash and cash equivalents at end of the period | 63,160 | 55,599
Supplementary Cash Flow Information: |  |
Income taxes cash payments, net of refunds | 8,531 | 9,782
Issuance of Common Stock in 2013 and 2012, respectively, pursuant to Employee Stock Plans | $ 1,842 | $ 1,250

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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 -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: 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 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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 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=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 + 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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- Definition Aggregate change in value for stock issued during the period as a result of employee stock purchase plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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- Definition Amount of unrealized gain (loss) recognized in the income statement on unsold other securities. + 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 (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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