Derivative Instruments and Hedging Activities - Schedule of Pre-tax Effect of Derivative Financial Instruments on Unaudited Condensed Consolidated Statements of Comprehensive Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivatives in Cash Flow Hedging Relationships:
(Loss) gain related to effective portion of derivatives recognized in accumulated other comprehensive (loss) income	$ (726)	$ 672
Gain (loss) related to effective portion of derivatives reclassified from accumulated other comprehensive (loss) income to interest expense	395	(340)
Gain (loss) related to ineffective portion of derivatives recognized in other income (expense)