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Subsequent Events- Additional Information (Detail) (Subsequent Event [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
 0 Months Ended 3 Months Ended
Oct. 28, 2014
Sep. 30, 2014
Sep. 25, 2014
Oct. 28, 2014
Sep. 30, 2014
Subsequent Event [Line Items]          
Special cash dividend       $ 1.50  
Special dividend payout expected $ 17,000        
Dividend payable date, declared day     Oct. 28, 2014    
Stockholders of record date     Dec. 03, 2014    
Dividend payable date     Dec. 12, 2014    
Credit facility maturity date   Jul. 15, 2016      
Permitted acquisitions amount         50,000
Sixth Amended to Credit Facility [Member]
          
Subsequent Event [Line Items]          
Credit facility maturity date   Jul. 15, 2019      
Number of dividend that can be declared in each year   2      
Aggregate amount of dividends that can be declared without bank consent         25,000
Excess availability required under the credit facility         30,000
Sixth Amended to Credit Facility [Member] | Maximum [Member]
          
Subsequent Event [Line Items]          
Permitted acquisitions amount   $ 100,000     $ 100,000