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Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Feb. 25, 2021
Class of Stock [Line Items]
Cash dividends received	$ 27,723	$ 8,367	$ 35,505	$ 16,139
Repurchase of common stock	$ 22,530	$ 2,551	22,586	2,561
Market value of shares repurchased under equity compensation plans			$ 829	$ 451
Employee Stock
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	3,687	0	5,019	0
Other Share Based Awards
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	14,007	9,660	14,007	9,730
2021 Stock Repurchase Plan
Class of Stock [Line Items]
Repurchase of common stock (in shares)					2,000,000
Stock repurchase program, percentage of common stock					6.70%
Repurchase of common stock (in shares)	526,749	45,354	526,749	45,354
Repurchase of common stock	$ 21,750	$ 2,101	$ 21,750	$ 2,101
Remaining shares available under repurchase program (in shares)	1,410,000		1,410,000
2019 Stock Repurchase Plan
Class of Stock [Line Items]
Cumulative number of shares repurchased (in shares)		223		223
Common Stock
Class of Stock [Line Items]
Repurchase of common stock (in shares)	544,443	55,014	545,775	55,307
Repurchase of common stock	$ 11,362	$ 983	$ 11,386	$ 988
Market value of shares repurchased under equity compensation plans	$ 775	$ 450	$ 830	$ 452

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Market value of shares tendered by employees in lieu of cash to pay for exercise of options and or related taxes.

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Dividends received on equity and other investments during the current period.

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