Treasury Stock - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2024	Nov. 30, 2022
Class of Stock [Line Items]
Number of shares of common stock authorized to repurchase	117,000,000		117,000,000			3,000,000
Treasury Stock, Value	$ 822,514,000		$ 822,514,000		$ 793,905,000
Treasury stock, shares	114,396,030		114,396,030		114,099,537
Average price per share of common stock	$ 111.87		$ 96.81
Common stock, shares outstanding	51,367,173		51,367,173		51,386,688
Purchase of treasury stock, shares	85,710		296,493
Purchase of treasury stock	$ (9,494,000)	$ (9,324,000)	$ (28,609,000)	$ (36,529,000)
Treasury stock, shares outstanding	114,396,030		114,396,030
Common Stock [Member]
Class of Stock [Line Items]
Purchase of treasury stock, shares	0	0	0	0
Purchase of treasury stock	$ (9,500,000)
1996 Repurchase Program [Member]
Class of Stock [Line Items]
Treasury Stock, Value	$ 823,000,000		$ 823,000,000
Treasury stock, shares	114,396,030		114,396,030
Common stock equals to percentage of outstanding common stock			69.00%
Average price per share of common stock	$ 111.51		$ 7.19
Purchase of treasury stock, shares	28,233
Purchase of treasury stock	$ (3,100,000)