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Acquisitions (Narrative) (Details) $ in Thousands		6 Months Ended				12 Months Ended
	Feb. 05, 2025 acquisition	Jun. 30, 2025 USD ($)	Jun. 30, 2025 USD ($) acquisition	Jun. 30, 2025 USD ($) investment	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Feb. 05, 2024
Business Combination [Line Items]
Number of businesses acquired			1	4
Total consideration net of cash		$ 50,345			$ 56,698
Goodwill		1,619,482	$ 1,619,482	$ 1,619,482		$ 1,580,258
Business Combination, Series of Individually Immaterial Business Combinations
Business Combination [Line Items]
Number of businesses acquired | acquisition	2		5
Fiscal 2025 Acquisition
Business Combination [Line Items]
Consideration paid in cash		64,000	$ 64,000	64,000
Total consideration net of cash		58,900
Goodwill		24,400	24,400	24,400
Expected income tax deductible amount		14,800	$ 14,800	$ 14,800
Definite-lived intangible assets acquired		30,700
Fiscal 2025 Acquisition | Customer Relationships
Business Combination [Line Items]
Definite-lived intangible assets acquired		6,100
Fiscal 2025 Acquisition | Trade names and trademarks
Business Combination [Line Items]
Definite-lived intangible assets acquired		16,400
Fiscal 2025 Acquisition | Other Intangible Assets
Business Combination [Line Items]
Definite-lived intangible assets acquired		$ 8,200
TDS Gift Cards
Business Combination [Line Items]
Consideration paid in cash					187,588
Goodwill					81,248
Percentage of voting interests acquired							100.00%
CNET Media, Inc
Business Combination [Line Items]
Consideration paid in cash					154,248
Goodwill					$ 36,479
Percentage of voting interests acquired							100.00%
Fiscal 2024 Acquisitions
Business Combination [Line Items]
Consideration paid in cash						219,200
Total consideration net of cash						$ 365,100

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