Deferred Portion of Tax Provision (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Amortization of franchise rights	$ 514	$ 514	$ 514
Amortization of other intangibles	621	1,180	1,142
Accrued expenses, deducted for tax when paid	(11,190)	(13,494)	(2,076)
Capitalized costs for books, deducted for tax	3,019	7,395	7,448
Depreciation	(2,597)	(7,813)	(1,709)
Federal impact of unrecognized tax benefits	(274)	478	331
Foreign tax credit carryforwards	(3,449)		5,719
Other, net	97	(3,253)	5,787
Deferred Portion Of Tax Expense Benefit, Total	$ (13,259)	$ (14,993)	$ 17,156