Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating Revenues
Operating Revenues	$ 1,207,162	$ 1,111,519	$ 3,545,104	$ 3,248,064
Operating Costs and Expenses
Selling, general and administrative	269,016	254,757	801,982	741,402
Depreciation of property, plant and equipment	21,332	22,207	66,032	63,335
Amortization of intangible assets	8,385	11,759	29,194	39,007
Impairment of goodwill and other long-lived assets	0	98,321	26,287	99,066
Total Operating Costs and Expenses	1,125,514	1,168,631	3,402,103	3,219,465
Income (Loss) from Operations	81,648	(57,112)	143,001	28,599
Equity in losses of affiliates, net	(13,361)	(791)	(8,470)	(2,245)
Interest income	2,277	1,986	6,566	4,738
Interest expense	(25,896)	(11,810)	(136,607)	(37,878)
Non-operating pension and postretirement benefit income, net	38,307	35,653	105,379	97,313
Gain on marketable equity securities, net	30,496	16,759	154,276	113,429
Other (expense) income, net	(465)	3,581	2,973	22,458
Income (Loss) Before Income Taxes	113,006	(11,734)	267,118	226,414
Provision for Income Taxes	38,500	9,400	86,100	70,400
Net Income (Loss)	74,506	(21,134)	181,018	156,014
Net Income Attributable to Noncontrolling Interests	(2,003)	(1,897)	(5,175)	(3,985)
Net Income (Loss) Attributable to Graham Holdings Company Common Stockholders	$ 72,503	$ (23,031)	$ 175,843	$ 152,029
Per Share Information Attributable to Graham Holdings Company Common Stockholders
Basic net income (loss) per common share (in USD per share)	$ 16.54	$ (5.02)	$ 39.74	$ 32.23
Basic average number of common shares outstanding (in shares)	4,352	4,602	4,395	4,686
Diluted net income (loss) per common share (in USD per share)	$ 16.42	$ (5.02)	$ 39.49	$ 32.14
Diluted average number of common shares outstanding (in shares)	4,384	4,602	4,423	4,700
Services [Member]
Operating Revenues
Operating Revenues	$ 700,009	$ 633,535	$ 2,003,543	$ 1,845,617
Operating Costs and Expenses
Cost of services and goods	399,667	373,784	1,171,703	1,093,756
Goods [Member]
Operating Revenues
Operating Revenues	507,153	477,984	1,541,561	1,402,447
Operating Costs and Expenses
Cost of services and goods	$ 427,114	$ 407,803	$ 1,306,905	$ 1,182,899

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Also includes expenses such as bad debt expense, and gain (loss) on disposition of assets.

No definition available.