Minimum eligible age to participate in the plan

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Number of former employees hired.

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No definition available.

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- Definition

The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

+ References

No definition available.

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- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 1
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-Section 30
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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
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- Definition

Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Paragraph 2
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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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-Paragraph 2
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Net number of share options (or share units) granted during the period.

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

+ References

No definition available.

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Share-Based Compensation Plans - Additional Information (Detail) shares in Thousands, $ in Thousands	1 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($) employee shares	May 31, 2017 USD ($) shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			163	192	275
Forfeiture of shares by transferred employees at closing of transaction			95	34	9
Minimum eligible age to participate in the plan			21 years
University made discretionary matching contributions \| $			$ 1,625	$ 2,837	$ 1,920
Grand Canyon University [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of former employees hired	100	100
Share-based compensation expense for restricted stock awards \| $			7,880
Recognized deferred compensation plan expense for former GCE employees \| $			$ 9,568
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant			1,910
Maximum \| 2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant			3,000
Restricted Stock Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld for taxes			151	151	114
Common stock in lieu of taxes \| $			$ 15,152	$ 9,790	$ 4,695
Unrecognized share-based compensation cost \| $			$ 20,376
Costs are expected to be recognized over a weighted average period			2 years 11 days
Restricted Stock Grants [Member] \| Grand Canyon University [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under plan	82	82,027
Share-based compensation expense for restricted stock awards \| $	$ 7,880	$ 7,880
Recognized deferred compensation plan expense for former GCE employees \| $	$ 9,568
Forfeiture of shares by transferred employees at closing of transaction	86
Restricted Stock Grants [Member] \| Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			3	4	11
Vesting period			1 year
Restricted Stock Grants [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			160	188	264
Vesting period			5 years
Restricted Stock Grants [Member] \| Share-based Compensation Award, Tranche One [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting right percentage			20.00%
Restricted Stock Grants [Member] \| Share-based Compensation Award, Tranche Two [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting right percentage			20.00%
Restricted Stock Grants [Member] \| Share-based Compensation Award, Tranche Three [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting right percentage			20.00%
Restricted Stock Grants [Member] \| Share-based Compensation Award Tranche Four [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting right percentage			20.00%
Restricted Stock Grants [Member] \| Share-based Compensation Award Tranche Five [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting right percentage			20.00%
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						5 years
Expiration period of options						10 years
Options granted			0	0	0