Employee Benefit Plans (Net Periodic Benefit Cost (Benefit)) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]
Expected return on plan assets, net of expenses	$ (11,087)	$ (10,412)	$ (11,434)
Interest cost on projected benefit obligation	7,341	7,801	7,892
Net amortization and deferral	(6,558)	(5,709)	(3,130)
Net periodic cost (benefit)	$ 2,812	$ 3,098	$ (412)