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Statements of Cash Flows (Unaudited) (USD $) In Thousands	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Cash flows provided by operating activities:
Net income	$ 9,481	$ 11,480
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	1,430	1,037
Excess tax benefits from share-based compensation		(492)
Amortization of debt issuance costs	15	16
Provision for bad debts	10,034	4,774
Depreciation and amortization	3,826	2,661
Exit costs	(24)	(479)
Deferred income taxes	(224)	(27)
Other		(39)
Changes in assets and liabilities:
Accounts receivable	(6,023)	(4,862)
Prepaid expenses and other	(52)	(1,655)
Due to/from related parties	(8,388)	1,400
Accounts payable	5,748	1,912
Accrued liabilities	(513)	5,024
Income taxes receivable/payable	6,665	6,251
Student deposits	(2,746)	1,911
Deferred revenue	4,184	20,168
Net cash provided by operating activities	23,413	49,080
Cash flows used in investing activities:
Capital expenditures	(14,668)	(11,591)
Change in restricted cash and cash equivalents	2,753	(2,931)
Proceeds from sale or maturity of investments		487
Net cash used in investing activities	(11,915)	(14,035)
Cash flows (used in) provided by financing activities:
Principal payments on notes payable and capital lease obligations	(694)	(727)
Purchase of treasury stock	(14,211)
Excess tax benefits from share-based compensation		492
Net proceeds from exercise of stock options	13	502
Net cash (used in) provided by financing activities	(14,892)	267
Net (decrease) increase in cash and cash equivalents	(3,394)	35,312
Cash and cash equivalents, beginning of period	33,637	62,571
Cash and cash equivalents, end of period	30,243	97,883
Supplemental disclosure of cash flow information
Cash paid for interest	107	195
Cash paid for income taxes	219	1,598
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment included in accounts payable	5,631	(1,357)
Tax benefit of Spirit warrant intangible	$ 70	$ 259

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Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element.

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The component of interest expense comprised of the periodic charge against earnings over the life of the financing arrangement to which such costs relate.

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The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from share-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from share-based compensation recognized in financial statements. This element reduces net cash provided by operating activities.

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Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services.

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The net change during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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The net change during the period in the amount of cash payments due to taxing authorities for taxes that are based on the reporting entity's earnings.

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The net change during the reporting period in the aggregate amount of expenses incurred but not yet paid.

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The net change during the reporting period, excluding the portion taken into income, in the liability reflecting services yet to be performed by the reporting entity for which cash or other forms of consideration was received or recorded as a receivable.

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The net change during the reporting period in the value of this group of assets within the working capital section.

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The net cash inflow (outflow) for the net change associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.

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The net cash from (used in) the entity's financing activities specifically EXCLUDING the cash flows derived by the entity from its discontinued operations, if any. This element is only to be used when the entity reports its cash flows attributable to discontinued operations separately from the cash flow provided by or used in financing activities. Such reporting would necessitate the entity to use the Net Cash Provided by (Used in) Discontinued Operations, Total element provided in the taxonomy.

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The net cash inflow (outflow) from investing activity.

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The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.

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Other change from the prior period in the balance of the restructuring provision that is not otherwise defined in the taxonomy.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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X

- Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration