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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 | $ 65,930 | $ 106,044 | $ 131,260
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Amortization of gain on sale of assets | (281) | (281) | (281)
Amortization of deferred rent | 323 | 1,177 | 275
Gain on sale of marketable securities |  | (66) | (406)
Amortization of deferred financing costs | 795 | 663 |
Depreciation and amortization | 23,973 | 21,525 | 17,309
Deferred income taxes | (38) | 3,722 | 353
Stock-based compensation | 5,464 | 13,234 | 11,987
Changes in assets and liabilities: |  |  |
Tuition receivable, net | 1,744 | (2,995) | (4,233)
Other current assets | (2,130) | (768) | (1,153)
Other assets | (135) | 102 | (258)
Accounts payable and accrued expenses | 5,673 | (3,360) | 10,146
Income taxes payable and income taxes receivable | (4,306) | (1,279) | (1,358)
Excess tax benefits from stock-based payment arrangements |  |  | (2,808)
Unearned tuition | (14,870) | 11,841 | 1,083
Other long-term liabilities | (80) | 4,804 | 905
Net cash provided by operating activities | 82,062 | 154,363 | 162,821
Cash flows from investing activities: |  |  |
Purchases of property and equipment | (24,733) | (29,991) | (46,015)
Purchases of marketable securities |  | (2) | (559)
Proceeds from the sale of marketable securities |  | 12,388 | 40,700
Acquisition of assets |  | (7,000) |
Net cash used in investing activities | (24,733) | (24,605) | (5,874)
Cash flows from financing activities: |  |  |
Common dividends paid | (47,328) | (49,105) | (44,541)
Proceeds from exercise of stock options |  |  | 452
Excess tax benefits from stock-based payment arrangements |  |  | 2,808
Repurchase of common stock | (25,001) | (202,664) | (115,517)
Proceeds from revolving credit facility | 63,000 | 120,000 |
Payments on revolving credit facility | (83,000) | (100,000) |
Proceeds from term loan | 47,500 | 100,000 |
Payments on term loan | (20,000) | (2,500) |
Payment of deferred financing costs | (2,120) | (2,459) |
Net cash used in financing activities | (66,949) | (136,728) | (156,798)
Net increase (decrease) in cash and cash equivalents | (9,620) | (6,970) | 149
Cash and cash equivalents - beginning of year | 57,137 | 64,107 | 63,958
Cash and cash equivalents - end of year | 47,517 | 57,137 | 64,107
Non-cash transactions: |  |  |
Purchases of property and equipment included in accounts payable | $ 529 | $ 1,115 | $ 5,508

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- Definition The cash outflow for the settlement of obligation drawn 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 maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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 -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: 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=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -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. + 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 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 2: 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=6943989&loc=d3e3602-108585 + Details
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