Derivative Financial Instruments - Schedule of Effect of Interest Rate Swaps on Consolidated Statement of Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/Loss Recognized in Other Comprehensive Loss on Derivative (Effective Portion)	$ 7,149	$ (19,826)	$ (42,732)
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from Accumulated Other Comprehensive Loss into Income Statement (Effective Portion)	(11,846)	(11,676)	(2,860)
Other Income (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized on Derivative (Ineffective Portion)	$ (6)