Employee Benefit Plans (Stock-Based Compensation Expense) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock options	$ 0	$ 0	$ 1,185
Non-vested stock awards/stock units	9,977	10,240	9,339
Deferred stock-units	700	770	780
Performance stock units	2,076	2,908	4,642
Total	12,753	13,918	15,946
Income tax benefit	$ 1,713	$ 2,142	$ 2,359