Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accounting Policies [Abstract]
Foreign exchange gain (loss) recognized	$ (700)	$ (1,900)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total other comprehensive income (loss)	$ 31,202	(159,954)
Scenario, Previously Reported | Translation of Acquired Intangibles
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total other comprehensive income (loss)		$ (93,100)