Quarterly report pursuant to Section 13 or 15(d)

Fair Value Accounting - Fair Value of Financial Assets Measured at Fair Value (Detail)

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Fair Value Accounting - Fair Value of Financial Assets Measured at Fair Value (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Assets:    
Cash and cash equivalents $ 278  
Trade accounts receivable, net 36,021  
Fair value of interest rate swap 2,081 3,177
Liabilities:    
Accounts payable 3,897  
Accrued expenses including estimated fair value of contingent earn-out consideration 12,760  
Accrued interest 18  
Long term liabilities including estimated fair value of contingent earn-out consideration 4,076 452
Long-term debt 290,884  
Level 1
    
Assets:    
Cash and cash equivalents 278  
Trade accounts receivable, net 36,021  
Fair value of interest rate swap     
Liabilities:    
Accounts payable 3,897  
Accrued expenses including estimated fair value of contingent earn-out consideration 11,612  
Accrued interest 18  
Long term liabilities including estimated fair value of contingent earn-out consideration 2,374  
Long-term debt 290,884  
Level 2
    
Assets:    
Cash and cash equivalents     
Trade accounts receivable, net     
Fair value of interest rate swap 2,081  
Liabilities:    
Accounts payable     
Accrued expenses including estimated fair value of contingent earn-out consideration     
Accrued interest     
Long term liabilities including estimated fair value of contingent earn-out consideration     
Long-term debt     
Level 3
    
Assets:    
Cash and cash equivalents     
Trade accounts receivable, net     
Fair value of interest rate swap     
Liabilities:    
Accounts payable     
Accrued expenses including estimated fair value of contingent earn-out consideration 1,148  
Accrued interest     
Long term liabilities including estimated fair value of contingent earn-out consideration 1,702  
Long-term debt