Schedule Of Foreign Currency Cash Flow Hedges (Detail) - Foreign Exchange Forward [Member] - Cash Flow Hedging [Member] - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivative, Notional Amount	$ 35.5	$ 101.0
Short [Member] | U.S. dollar/Japanese yen
Derivative, Notional Amount	0.0	23.4
Short [Member] | U.S. dollar/Taiwan dollar
Derivative, Notional Amount	0.0	5.5
Long [Member] | U.S. dollar/Japanese yen
Derivative, Notional Amount	35.5	61.2
Long [Member] | U.S. dollar/Taiwan dollar
Derivative, Notional Amount	$ 0.0	$ 10.9