Document and Entity Information	6 Months Ended
	Jun. 30, 2011	Nov. 01, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	Grand Canyon Education, Inc.
Entity Central Index Key	0001434588
Document Type	10-Q
Document Period End Date	Jun. 30, 2011
Amendment Flag	true
Amendment Description	Amendment No.1 to Form 10-Q
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		44,331,047