Business Acquisitions (Preliminary Purchase Consideration) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Business Acquisition [Line Items]
Goodwill	$ 1,598,605	$ 1,580,258
TDS
Business Acquisition [Line Items]
Cash			$ 142,957
Accounts receivable and other current assets			171,290
Intangible assets			108,340
Goodwill			81,248
Deferred tax asset, noncurrent			0
Other assets			203
Accounts payable and other current liabilities			(290,161)
Deferred tax liability, noncurrent			(25,442)
Other noncurrent liabilities			(847)
Total			187,588
Accounts receivable			170,700
Settlement receivables, net			166,800
CNET Media, Inc
Business Acquisition [Line Items]
Cash			0
Accounts receivable and other current assets			16,904
Intangible assets			100,500
Goodwill			36,363
Deferred tax asset, noncurrent			11,412
Other assets			655
Accounts payable and other current liabilities			(11,586)
Deferred tax liability, noncurrent			0
Other noncurrent liabilities			0
Total			154,248
Accounts receivable			$ 16,200
Fiscal 2024 Acquisitions
Business Acquisition [Line Items]
Accounts receivable and other current assets adjustment	600
Deferred revenue adjustment	200
Fiscal 2024 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Measurement period adjustment	(1,200)
Fiscal 2024 Acquisitions | Other Intangible Assets
Business Acquisition [Line Items]
Measurement period adjustment	$ 700