Income Tax - Segregation of Income Tax Expense (Benefit) Based on Location of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Current tax provision
Current tax provision, Puerto Rico	$ 1,367	$ 423	$ 2,522	$ 1,360
Current tax provision, United States	160	217	301	415
Current tax provision, Foreign countries	782	324	1,532	2,778
Total current tax provision	2,309	964	4,355	4,553
Deferred tax (benefit) provision
Deferred tax (benefit) provision, Puerto Rico	111	805	410	832
Deferred tax (benefit) provision, United States	(32)	(2)	(58)	(3)
Deferred tax (benefit) provision, Foreign countries	(268)	195	(341)	(1,259)
Total deferred tax (benefit) provision	$ (189)	$ 998	$ 11	$ (430)