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Significant Components of Current Deferred Tax Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]    
Deferred profit-sharing contingent commissions $ 9,713 $ 9,490
Net operating loss carryforwards 8,408 5,786
Accruals and reserves 11,155 9,132
Total current deferred tax assets $ 29,276 $ 24,408