Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 09, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Income Tax Contingency [Line Items]
Provision for income taxes, benefit (expense)		$ 4,887	$ (10,154)	$ (26,960)	$ (35,906)
Unrecognized tax benefit		48,000		48,000		$ 44,400
Net tax benefit from unrecognized tax benefits, if recognized		16,000		16,000		$ 12,700
Undistributed earnings, pre-tax		$ 9,800		18,300
Other business combinations [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefits, increase resulting from acquisition				$ 3,600
Costa Rica [Member] | Tax holiday through December 31, 2018 [Member]
Income Tax Contingency [Line Items]
Holiday tax rate				100.00%
Costa Rica [Member] | Subsequent four years from December 31, 2018 [Member]
Income Tax Contingency [Line Items]
Holiday tax rate				50.00%
Income tax holiday, term				4 years
Consent order, Consumer Finance Protection Bureau [Member]
Income Tax Contingency [Line Items]
Settlement of allegations, civil monetary penalty	$ (10,000)