Schedule II - Valuation and Qualifying Accounts (Detail) (Parent Company [Member], Valuation Allowance of Deferred Tax Assets [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Parent Company [Member] | Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 32,344	$ 31,669	$ 38,281
Addition Charged to Expenses	3,611	4,173	4,883
Addition Charged to other accounts			961
Deductions	(6,454)	(3,498)	(12,456)
Balance at End of Year	$ 29,501	$ 32,344	$ 31,669