Stock-Based Compensation (Detail) - (Table 4) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at January 1, 2012	2,531,000	2,674,000
Outstanding at January 1, 2012 (in Dollars per share)	$ 29.06	$ 26.80
Granted	(266,000)	(270,000)
Granted (in Dollars per share)	$ 37.04	$ 43.30
Exercised	(24,000)	(411,000)
Exercised (in Dollars per share)	$ 25.61	$ 23.67
Cancelled/Forfeited	(17,000)	(2,000)
Outstanding at June 30, 2012	2,756,000	2,531,000	2,674,000
Outstanding at June 30, 2012 (in Dollars per share)	$ 29.80	$ 29.06	$ 26.80
Outstanding at June 30, 2012	2 years	2 years 8 months 12 days
Outstanding at June 30, 2012 (in Dollars)	$ 11,778	$ 44,054
Exercisable at June 30, 2012	2,543,000	2,070,000
Exercisable at June 30, 2012 (in Dollars per share)	$ 29.11	$ 28.20
Stock based compensation, shares exercisable, weighted average remaining contractual term	2 years	2 years 7 months 6 days
Exercisable at June 30, 2012 (in Dollars)	$ 11,741	$ 37,829
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ 39.28	$ 31.56
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum	1.20%	0.10%	0.20%
Risk free interest rate	3.00%	1.00%	1.60%