Income Tax Expense (benefit) Differs from Computed Income Tax at Statutory Rates (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Effective Tax Rate Reconciliation [Line Items]
Computed income tax at statutory rates		$ (10,378)	$ 5,313	$ (1,504)
Non taxable loss on settlement of derivative asset				420
Tax expense (benefit) due to a change in estimate		83	320	(2,416)
Adjustment to deferred taxes due to changes in enacted tax rate and tax grant	1,400	1,441	(66,423)	(23,813)
Effect of disallowed net operating losses in foreign entities		93	1,012
Differences in tax rates due to multiple jurisdictions		577	720	285
Effect of income subject to tax-exemption grant		7,164	(58)	(1,737)
Reversal of tax uncertainties reserve		(846)	(707)
Fair value adjustment of indemnification assets			340	(288)
Tax benefit CONTADO dividend				81
Tax uncertainties reserve				250
Other		56	(162)	138
Income tax benefit		(1,990)	(59,658)	(29,227)
Interest Income
Schedule of Effective Tax Rate Reconciliation [Line Items]
Benefit of net tax-exempt income		(180)	(13)	(23)
Dividend Income
Schedule of Effective Tax Rate Reconciliation [Line Items]
Benefit of net tax-exempt income				$ (620)