Employee Benefit Plans (Stock-Based Compensation Expense) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]
Stock options	$ 8,814	$ 9,663	$ 10,834
Non-vested stock awards/stock units	2,819	2,843	4,799
Deferred stock-units	330	330	330
Total	11,963	12,836	15,963
Income tax benefit	$ 4,187	$ 4,493	$ 5,587