Fair Value Measurements and Derivative Financial Instruments - Schedule of Gains and Losses Before Income Taxes Recognized on Interest Rate Swaps Designated as Cash Flow Hedges (Detail) - Interest Rate Swaps [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain recognized in accumulated other comprehensive loss	$ (49)	$ 198	$ (174)	$ 397
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain reclassified from accumulated other comprehensive loss (effective portion)	$ (26)	10	$ (53)	1,970
Gain recognized in interest expense (ineffective portion and amount excluded from effectiveness testing)		$ 274		$ 541