Deferred Tax Assets and Liabilities Recognized in Company's Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Deferred tax asset - other current assets	$ 34,151	$ 32,293
Deferred tax asset - other noncurrent assets	4,284	3,222
Total deferred tax assets	38,435	35,515
Deferred tax liability - accrued expenses	0	0
Noncurrent deferred tax liability - deferred income taxes	(144,908)	(121,349)
Total deferred tax liabilities	(144,908)	(121,349)
Net deferred tax liabilities	$ (106,473)	$ (85,834)