Shareholders' Equity - Additional Information (Detail) - $ / shares shares in Thousands		3 Months Ended
	May 04, 2021	Mar. 31, 2021	Mar. 31, 2020
Subsequent Event
Class of Stock [Line Items]
Date of declaration of dividends	May 04, 2021
Dividend declared per share	$ 0.58
Date of dividend payment	Jun. 15, 2021
Dividends payable to shareholders date of record	Jun. 01, 2021
Discretionary Plan
Class of Stock [Line Items]
Expected common stock shares issued and outstanding		160,000
Shares repurchased		925	4,000
Average price per share		$ 92.98	$ 70.81