Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Oct. 31, 2023
Stockholders Equity Note [Line Items]
Common stock shares purchased under publicly-announced share repurchase program	1,024,328	1,352,954	709,200
Common stock purchased under publicly-announced share repurchase program, value	$ 166.0	$ 175.4	$ 100.0
Stock repurchase program, authorized amount				$ 75.0
Excise tax on stock repurchases	1.00%