Stock Repurchase Program - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2021	May 31, 2023	May 31, 2022	May 31, 2021
Stock Repurchase Programs [Line Items]
Authorization of stock repurchase program		Jan. 08, 2008
Capital to be returned to stockholders through share repurchases				$ 1,000,000
Stock repurchase program, remaining authorized repurchase, value	$ 469,700	$ 317,300		$ 600,000
Stock repurchase program expiration date	May 31, 2021
Shares repurchased		598,653	601,155	594,061
Shares repurchased, value		$ 50,000	$ 52,500	$ 49,956
Repurchase of common stock price per shares		$ 83.52	$ 87.33	$ 84.09