Common Stock Stated Market Value Per Share

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- Definition

Fair value of company common stock

+ References

No definition available.

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- Definition

Number of shares to be received from Berkshire Hathaway in exchange for WPLG, a number of Berkshire shares held by the Company and an amount of cash.

+ References

No definition available.

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- Definition

Percentage Of Conversion From One Class Of Stock To Another

+ References

No definition available.

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- Definition

Right To Elect Board Of Directors Percentage

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Year Four

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Year One

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Year Three

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Year Two

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No definition available.

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- Definition

The weighted average price as of the end of the year at which grantees can acquire the shares reserved for issuance under the stock option plan which are not vested.

+ References

No definition available.

+ Details

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- Definition

The weighted average period between the balance sheet date and expiration for all awards outstanding but not vested under the plan, which may be expressed in a decimal value for number of years.

+ References

No definition available.

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- Definition

Options outstanding exercisable now.

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Exercisable Year Five

+ References

No definition available.

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- Definition

Options outstanding exercisable in year four.

+ References

No definition available.

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- Definition

Options outstanding exercisable in year one.

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Exercisable Year Six

+ References

No definition available.

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- Definition

Options outstanding exercisable in year three.

+ References

No definition available.

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- Definition

Options outstanding exercisable in year two.

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Unvested Intrinsic Value

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No definition available.

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- Definition

The number of shares modified of an equity-based compensation plan.

+ References

No definition available.

+ Details

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- Definition

The number of shares modified by the elimination of a market condition and vesting terms of an equity-based compensation plan.

+ References

No definition available.

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- Definition

The number of shares offered to employees to settle in cash resulting in a modification of awards from equity awards to liability awards.

+ References

No definition available.

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- Definition

Number of shares authorized to be repurchased remaining under previous authorization.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Publisher FASB

-Name Accounting Standards Codification

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Topic 260

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-Glossary Antidilution

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-Glossary Contingent Stock Agreement

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Topic 505

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-Name Regulation S-X (SX)

-Number 210

-Section 02

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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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-Name Accounting Standards Codification

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-Topic 230

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- Definition

The amount of distributions made to the individual during the period.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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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.

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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- Definition

The cash outflow to reacquire common stock during the period.

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-Glossary Financing Activities

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- Definition

Number of shares for which recognition of compensation cost was accelerated.

+ References

No definition available.

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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

-Subparagraph (a)(1)

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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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-Name Accounting Standards Codification

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-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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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

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ References

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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

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Number of non-vested options outstanding.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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The number of employees affected by the modification of an equity-based compensation plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Capital Stock, Stock Awards, and Stock Options (Narrative) (Details) (USD $)	12 Months Ended			1 Months Ended		2 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2015	Dec. 31, 2012	Feb. 26, 2015	Jun. 30, 2014	Dec. 31, 2011	Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cost of shares repurchased by company	$ 327,718,000	$ 4,196,000	$ 103,196,000
Shares subject to award outstanding	117,111	114,479	207,917		207,917			77,319
Number of shares forfeited due to modification	7,384	92,018	7,616
Awarded, Number of Shares	21,114	70,165	145,348
Shares subject to stock options outstanding	151,694	121,694	125,694		125,694			129,044
Options Outstanding, Weighted Average Remaining Contractual Life	7 years 4 months 24 days
Options Outstanding, Weighted Average Exercise Price	$ 682.68	$ 469.76	$ 478.32		$ 478.32			$ 494.95
Granted, Number of Shares	55,000	15,000	7,500
Exercised, Number of Shares	(19,125)	(14,500)	0
Exercised, Average Option Price (in dollars per share)	$ 409.44	$ 391.83	$ 0
Dividends declared per common share	$ 10.20		$ 9.80
Options Exercisable, Weighted Average Remaining Contractual Life	5 years 7 months 6 days
Exercise Price $1,111 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares subject to stock options outstanding	50,000
Options Outstanding, Weighted Average Remaining Contractual Life	9 years 9 months 18 days
Options Outstanding, Weighted Average Exercise Price	$ 1,111.20
Options Exercisable, Weighted Average Remaining Contractual Life	0 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities, shares	5,175	5,500	52,200
Kaplan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares subject to stock options outstanding	5,000
Granted, Number of Shares	0	5,000	0
Exercised, Number of Shares	0	0	0
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities, shares	52,000	10,000	124,694
Senior Manager [Member] \| Kaplan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Subsequent Event [Member] \| Kaplan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Number of Shares				2,500
Maximum [Member] \| Kaplan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Minimum [Member] \| Kaplan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Accelerated dividends in lieu of regular quarterly dividends in 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared per common share					$ 9.80
Education [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrual balance related to stock based compensation	10,800,000
Stock compensation payouts	0	0	0		0
Education [Member] \| Kaplan Stock Option and Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based Compensation Expense	900,000	2,900,000	(1,100,000)
Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of Class A shares to Class B	194,250	50,310
Conversion of stock from Class A to Class B, percentage	17.00%	4.00%
Common Stock, shares outstanding	974,823	1,169,073
Class B Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Right to elect Board of Directors percentage	30.00%
Shares repurchased by company		33,024	301,231
Cost of shares repurchased by company		17,700,000	103,200,000
Number of shares authorized to be repurchased									750,000
Number of shares authorized to be repurchased remaining under previous authorization									43,573
Authorized shares remaining for repurchase	159,219
Market value of company's stock	$ 863.71
Common Stock, shares outstanding	4,823,966	6,218,051
Class B Common Stock [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards outstanding, restriction will lapse in 2015	31,825
Share awards outstanding, restriction will lapse in 2016	20,425
Share awards outstanding, restriction will lapse in 2017	46,996
Share awards outstanding, restriction will lapse in 2018	17,865
Stock-based Compensation Expense	15,400,000	35,200,000	11,400,000
Total unrecognized compensation expense	26,000,000
Years over which cost expected to be recognized	1 year 6 months 21 days
Class B Common Stock [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based Compensation Expense	2,700,000	3,500,000	2,900,000
Total unrecognized compensation expense	10,500,000
Years over which cost expected to be recognized	5 years 2 months 12 days
Options outstanding exercisable now	70,194
Options outstanding exercisable in 2015	27,208
Options outstanding exercisable in 2016	14,708
Options outstanding exercisable in 2017	13,334
Options outstanding exercisable in 2018	9,583
Options outstanding exercisable in 2019	8,333
Options outstanding exercisable in 2020	8,334
Intrinsic value of options outstanding	39,800,000
Intrinsic value of options exercisable	27,500,000
Intrinsic value of options unvested	12,300,000
Options unvested, shares	81,500	48,500
Options unvested, average exercise price	$ 863.72	$ 442.02
Options unvested, weighted average remaining contractual term, years	8 years 10 months 24 days	7 years 10 months 24 days
Intrinsic value of options exercised	6,700,000	3,200,000
Tax benefit from stock option exercises	2,700,000	1,300,000
Weighted average fair value, granted options	$ 178.95	$ 91.74	$ 91.71
Exercised, Number of Shares	(19,125)	(14,500)	0
Class B Common Stock [Member] \| Employee Stock Option [Member] \| Exercise Price Above Fair Market Value of Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Number of Shares	50,000
Class B Common Stock [Member] \| Subsequent Event [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awarded, Number of Shares						23,475
Class B Common Stock [Member] \| Subsequent Event [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Number of Shares						5,000
Class B Common Stock [Member] \| Sale Of Publishing Subsidiaries [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares affected by modification of terms		86,824
Number of employees affected by modification of terms of share awards		102
Number of share awards with accelerated vesting		45,374
Number of shares modified by the elimination of a market condition and vesting terms		15,000
Number of shares forfeited due to modification		26,450
Number of shares offered to settle in cash due to modification		26,124
Cash paid for the settlement of shares due to modification		13,100,000
Class B Common Stock [Member] \| Sale Of Publishing Subsidiaries [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares affected by modification of terms		4,500
Number of employees affected by modification of terms of share awards		6
Number of share awards with accelerated vesting		4,250
Number of stock options forfeited due to modification		250
Class B Common Stock [Member] \| Sale Of Publishing Subsidiaries [Member] \| Discontinued Operations [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental stock compensation expense, net of forfeitures, due to modification		19,900,000
Class B Common Stock [Member] \| Sale Of Publishing Subsidiaries [Member] \| Discontinued Operations [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental stock compensation expense, net of forfeitures, due to modification		800,000
Class B Common Stock [Member] \| 2001 Incentive Compensation Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance	37,825
Class B Common Stock [Member] \| 2003 Employee Stock Option Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance	81,694
Shares reserved for options granted under the plan	1,900,000
Class B Common Stock [Member] \| 2003 Employee Stock Option Plan [Member] \| Maximum [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	10 years
Class B Common Stock [Member] \| 2003 Employee Stock Option Plan [Member] \| Minimum [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Class B Common Stock [Member] \| 2012 Incentive Compensation Plan [Member] \| Stock Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance	460,726
Shares subject to award outstanding	149,286
Shares available for future awards	311,440
Class B Common Stock [Member] \| 2012 Incentive Compensation Plan [Member] \| 2014 Option Granted [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	6 years
Class B Common Stock [Member] \| 2012 Incentive Compensation Plan [Member] \| Maximum [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	10 years
Class B Common Stock [Member] \| 2012 Incentive Compensation Plan [Member] \| Minimum [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Kaplan Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of company common stock		$ 973
Kaplan Restricted Stock [Member] \| Senior Manager [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares outstanding	7,206
Kaplan Restricted Stock [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of company common stock				1,180
Berkshire Exchange Transaction [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of Class B common stock	$ 1,165,400,000						$ 1,165,400,000
Berkshire Exchange Transaction [Member] \| Class B Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares received in Berkshire Hathaway agreement	1,620,190						1,620,190.00000