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Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 03, 2025	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2022
Stockholders Equity [Line Items]
Acquisition of Teads			$ 261,296
Number of shares withheld to satisfy employee tax withholding obligations (in shares)		45,161	73,000
Fair value of shares withheld to satisfy employee tax withholding obligations		$ 100	$ 400
Legacy Teads
Stockholders Equity [Line Items]
Sale of stock, price per share (in used per share)	$ 6.01
Gain (loss) on issuance of treasury stock	$ 6,300
Adjustments to additional paid in capital, stock issued, issuance costs	$ 1,600
Common Stock
Stockholders Equity [Line Items]
Acquisition of Teads (in shares)			30,320,161
Acquisition of Teads			$ 30
Common Stock \| Legacy Teads
Stockholders Equity [Line Items]
Acquisition of Teads (in shares)	30,320,161
Treasury Stock
Stockholders Equity [Line Items]
Acquisition of Teads (in shares)			13,429,839
Acquisition of Teads			$ 74,402
Treasury Stock \| Legacy Teads
Stockholders Equity [Line Items]
Acquisition of Teads (in shares)	13,429,839
Stock issued during period, value, acquisitions, fair value	$ 80,700
Acquisition of Teads	$ 74,400
December 2022 Repurchase Program
Stockholders Equity [Line Items]
Stock repurchase program, authorized amount				$ 30,000
Stock repurchase program, remaining authorized repurchase amount		$ 6,600