Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Taxes [Line Items]
Provision for income taxes	$ 11,742,000	$ 12,571,000
Net tax benefit from unrecognized tax benefits, if recognized	18,700,000
Increase in gross unrecognized tax benefit	5,200,000
Undistributed earnings	2,400,000
Income tax holiday, description	The Company's subsidiary in Costa Rica is operating under a 100% tax holiday through December 31, 2018 and a 50% tax holiday for the subsequent four years. The impact of the tax holiday in Costa Rica for the three months ended March 31, 2014 was immaterial.
AACC Merger [Member]
Income Taxes [Line Items]
Unrecognized tax benefit	$ 88,200,000
Costa Rica [Member] | Tax Holiday Through December 31, 2018 [Member]
Income Taxes [Line Items]
Holiday tax rate	100.00%
Costa Rica [Member] | Subsequent Four Years [Member]
Income Taxes [Line Items]
Holiday tax rate	50.00%
Income Tax Holiday, Term	4 years