Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows provided by operating activities:
Net income	$ 34,179us-gaap_NetIncomeLoss	$ 26,288us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	2,603	2,204
Excess tax benefits from share-based compensation	(2,816)	(6,419)
Provision for bad debts	3,968us-gaap_ProvisionForDoubtfulAccounts	3,795us-gaap_ProvisionForDoubtfulAccounts
Depreciation and amortization	8,154us-gaap_DepreciationAndAmortization	6,929us-gaap_DepreciationAndAmortization
Deferred income taxes	1,001	1,150
Prepaid royalty impairment		966us-gaap_AmortizationOfAdvanceRoyalty
Other		121us-gaap_OtherNoncashIncomeExpense
Changes in assets and liabilities:
Restricted cash, cash equivalents and investments	9,965	13,534
Accounts receivable	(3,052)	(3,962)
Prepaid expenses and other	(283)	957
Due to/from related parties	17	62
Accounts payable	(165)	(1,702)
Accrued liabilities and employee related liabilities	(4,526)	(6,419)
Income taxes receivable/payable	13,508	15,104
Deferred rent	(268)lope_IncreaseDecreaseInDeferredRent	(260)lope_IncreaseDecreaseInDeferredRent
Deferred revenue	16,539	13,884
Student deposits	(10,635)	(12,561)
Net cash provided by operating activities	68,189	53,671
Cash flows used in investing activities:
Capital expenditures	(45,737)	(27,214)
Purchases of investments	(10,710)	(62,711)
Proceeds from sale or maturity of investments	10,479	13,665
Net cash used in investing activities	(45,968)	(76,260)
Cash flows (used in) provided by financing activities:
Principal payments on notes payable and capital lease obligations	(1,676)	(1,672)
Repurchase of common shares including shares withheld in lieu of income taxes	(4,178)	(4,243)
Excess tax benefits from share-based compensation	2,816	6,419
Net proceeds from exercise of stock options	1,735	5,390
Net cash (used in) provided by financing activities	(1,303)	5,894
Net increase (decrease) in cash and cash equivalents	20,918	(16,695)
Cash and cash equivalents, beginning of period	65,238	55,824
Cash and cash equivalents, end of period	86,156	39,129
Supplemental disclosure of cash flow information
Cash paid for interest	386us-gaap_InterestPaid	535us-gaap_InterestPaid
Cash paid for income taxes	6,800us-gaap_IncomeTaxesPaid	372us-gaap_IncomeTaxesPaid
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment included in accounts payable	17,611	5,438
Tax benefit of Spirit warrant intangible	65	65
Shortfall tax expense from share-based compensation	$ 11	$ 9

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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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The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ 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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a),(b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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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

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-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

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-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

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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.

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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)

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-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

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt and payment of capital lease obligations.

+ References

No definition available.

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