Registration of securities issued in business combination transactions

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
LegalMatter
Dec. 31, 2012
Dec. 31, 2011
Mar. 31, 2014
LegalMatter
Commitment And Contingencies [Line Items]        
Rent expense for operating leases $ 19,900,000 $ 11,800,000 $ 12,100,000  
Exposure per occurrence, employees compensation 250,000      
Aggregate self insured exposure per employer's liability 500,000      
Exposure per occurrence 500,000      
Aggregate self insured exposure per occurrence, foreign employees compensation 100,000      
Aggregate self insured exposure per employer's liability, foreign 1,000,000      
Aggregate deductible for protection and indemnity and maritime employers' liability claims 500,000      
Auto liability claims 100,000      
Gross self insurance accruals 5,700,000 4,700,000    
Related insurance recoveries 1,700,000 1,200,000    
Number of pending claims 15     15
Amount accrued 0     0
Fine paid by for retention and use of individual agent in Nigeria with respect to customs-related issues $ 11,760,000     $ 11,760,000
Minimum [Member]
        
Commitment And Contingencies [Line Items]        
Employment agreements terms 1 year      
Maximum [Member]
        
Commitment And Contingencies [Line Items]        
Employment agreements terms 2 years