Deferred Revenue Recognized of Refundable Prepaid Amounts

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- Definition

Minimum Term of Contract

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- Definition

Percentage of Refundable Amounts Included Within Contract Liabilities.

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- Definition

Percentage of Revenue Recognized During Period from Contract with Customer, Excluding Assessed Tax

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- Definition

Revenue Remaining Performance Obligation Percentage of Revenue Expected to be Recognized Over Next 12 Months

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as noncurrent.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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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.

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Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Deferred revenue recognized in period related to beginning balance	$ 207,100
Deferred Revenue	$ 392,754		$ 400,347
Percentage of Refundable Amounts Included Within Contract Liabilities	15.00%		20.00%
Deferred Revenue Recognized of Refundable Prepaid Amounts	$ 28,700
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Percentage of Revenue	54.00%	55.00%
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Percentage of Revenue	46.00%	45.00%
U.S. [Member]
Disaggregation of Revenue [Line Items]
Percentage of Revenue	78.00%	79.00%
Non-US [Member]
Disaggregation of Revenue [Line Items]
Percentage of Revenue	22.00%	21.00%
Kaplan International [Member]
Disaggregation of Revenue [Line Items]
Contract with Customer, Asset, Net, Noncurrent	$ 34,500		$ 39,800
Supplemental Education [Member] \| Long-term Contract with Customer [Member]
Disaggregation of Revenue [Line Items]
Minimum Term of Contract	12 months
Revenue Remaining Performance Obligation Percentage of Revenue Expected to be Recognized Over Next 12 Months	67.00%