Income Taxes - Balance Sheet Classification of Net Deferred Income Tax Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Schedule Of Balance Sheet Classification Of Net Deferred Income Tax Assets Liabilities [Line Items]
Current assets	$ 60,143		$ 78,861
Noncurrent assets	35,623		49,858
Noncurrent liabilities	(100,691)		(104,835)
Net deferred income tax asset (liability)	$ (4,925)	[1]	$ 23,884	[2]

[1] Includes $7.5 million of deferred tax assets related to uncertain tax positions.

[2] Includes $11.7 million of deferred tax assets related to uncertain tax positions.