Registration of securities issued in business combination transactions

Accounting for Uncertainty in Income Taxes - Additional Information (Detail)

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Accounting for Uncertainty in Income Taxes - Additional Information (Detail) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]        
Liability for unrecognized tax $ 12,400,000 $ 12,209,000 $ 10,000,000 $ 10,030,000
Unrecognized tax favorable impact on effective tax rate 5,600,000 5,400,000 3,200,000  
Accrued interest and penalties applied to uncertain tax positions 8,100,000 7,900,000    
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions $ 6,100,000