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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Carrying Value of Goodwill
The change in the carrying value of goodwill is as follows:
(In thousands)
Balance as of December 31, 2022 (1)
$387,973 
Impairment charge(78,200)
Translation adjustments587 
Balance as of December 31, 2023
$310,360 
Impairment charge(63,000)
Translation adjustments(1,350)
Balance as of December 31, 2024
$246,010 
(1) Goodwill balance is net of an accumulated impairment charge of $270.6 million as of December 31, 2022.
Schedule of Carrying Values of Amortizable Acquired Intangible Assets
The carrying values of the Company's definite-lived intangible assets are as follows:
As ofAs of
December 31, 2024December 31, 2023
(In thousands)Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Acquired methodologies and technology$154,400 $(151,982)$2,418 $154,409 $(150,783)$3,626 
Customer relationships46,529 (43,889)2,640 46,623 (42,663)3,960 
Intellectual property14,364 (14,364)— 14,366 (14,076)290 
Acquired software9,765 (9,765)— 9,765 (9,526)239 
Panel3,102 (3,102)— 3,107 (3,107)— 
Trade names739 (739)— 750 (750)— 
Other600 (600)— 600 (600)— 
Total intangible assets$229,499 $(224,441)$5,058 $229,620 $(221,505)$8,115 
Schedule of Weighted Average Remaining Amortization Period
The weighted-average remaining amortization period by major asset class as of December 31, 2024 is as follows:
 (In years)
Acquired methodologies and technology2.0
Customer relationships2.0
Schedule of Estimated Future Amortization of Acquired Intangible Assets
The estimated future amortization of intangible assets is as follows:
(In thousands)
2025$2,529 
20262,529 
Thereafter— 
Total$5,058