Foreign Currency Translation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Cumulative foreign currency losses	$ 409.1		$ 425.1
Cumulative inflation rate	100.00%
Cumulative inflation period	3 years
AR
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Foreign currency and other related gain (loss)	$ 1.0	$ 1.1
CNK [Member]
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Accumulated other comprehensive income (loss)	403.0		416.7
Foreign currency and other related gain (loss)	0.5	1.4
CUSA [Member]
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Accumulated other comprehensive income (loss)	405.8		$ 419.5
Foreign currency and other related gain (loss)	$ 0.5	$ 1.4