Segment Information - Reconciliation of U.S. GAAP Income (Loss) Before Income Taxes to Adjusted EBITDA (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Loss on mark-to-market adjustment of contingent consideration	$ (7,006)	$ 0
Interest income	2,900
Currency gains on acquisition-related intercompany loans	1,800
Currency losses on acquisition-related intercompany loans		$ 1,500
World Programming [Member]
Segment Reporting Information [Line Items]
Loss on mark-to-market adjustment of contingent consideration	$ 7,000