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Debt - Additional Information (Detail) - USD ($)
$ in Thousands
 6 Months Ended
Aug. 20, 2013
Nov. 10, 2011
Jun. 30, 2015
Dec. 31, 2014
Debt Instrument [Line Items]        
Credit facility, interest rate description     The applicable margin for borrowings under the Revolving Credit Facility is, based on the calculation of the applicable consolidated total leverage ratio, between 0.50% to 1.50% with respect to base rate borrowings and between 1.50% and 2.50% with respect to LIBOR based borrowings. Interest is due and payable monthly. The interest rate in effect at June 30, 2015 for the Credit Facility was 2.44%.  
Credit facility, interest rate margin above federal fund rate     1.00%  
Credit facility, interest rate margin above one-month LIBOR rate     1.00%  
Credit facility, borrowing rate     2.44%  
Maturity date of senior notes     Aug. 15, 2020  
Credit Facility maturity date     Aug. 20, 2018  
Other current liabilities     $ 14,535 $ 7,340
Minimum [Member]        
Debt Instrument [Line Items]        
Credit facility, interest rate margin above base rate     0.50%  
Credit facility, interest rate margin above LIBOR rate     1.50%  
Maximum [Member]        
Debt Instrument [Line Items]        
Credit facility, interest rate margin above base rate     1.50%  
Credit facility, interest rate margin above LIBOR rate     2.50%  
Senior Notes [Member]        
Debt Instrument [Line Items]        
Senior notes amount outstanding $ 300,000   $ 300,000  
Issue price percentage of senior notes of the principal amount 100.00%      
Percentage of interest rate on notes 6.375%      
Maturity date of senior notes Aug. 15, 2020      
License Agreement [Member]        
Debt Instrument [Line Items]        
Financed internally-used software     $ 16,100  
License agreement period     3 years  
Annual payments due date     May of 2017  
Total other liabilities     $ 12,800  
Other current liabilities     7,000  
Other noncurrent liabilities     5,800  
Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Unused borrowings     250,000  
Credit facilities, maximum borrowing capacity   $ 250,000    
Credit facilities, maturity   5 years    
Term Credit Facility [Member]        
Debt Instrument [Line Items]        
Line of credit facility amount outstanding     $ 508,200  
Credit facilities, maximum borrowing capacity   $ 650,000    
Credit facilities, maturity   5 years    
Parent Company and Domestic Subsidiaries [Member]        
Debt Instrument [Line Items]        
Percentage of capital stock pledged as collateral     100.00%  
Foreign Subsidiaries [Member]        
Debt Instrument [Line Items]        
Percentage of capital stock pledged as collateral     65.00%