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Taxes (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 03, 2016
Apr. 03, 2016
Jul. 05, 2015
Jul. 03, 2016
Jul. 05, 2015
Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Net cash provided by operating activities       $ 49,311,000 $ 18,003,000  
Net cash provided by (used in) financing activities       $ (12,690,000) $ (20,501,000)  
Proceeds and Excess Tax Benefit from Share-based Compensation $ 745,000 $ 463,000        
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions $ 104,000          
provision for effective tax rate on continuing operations       18.00%    
Effective Income Tax Rate Reconciliation, Percent 17.00%   17.00% 16.00% 17.00%  
Effective Income Tax Rate Reconciliation, Percent         18.00%  
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions     $ 112,000      
Effective Income Tax Rate Reconciliation, Write-Down of Deferred Tax Asset     65,000      
Decrease in tax expense from expiration of statues of limitations     $ 364,000      
Increase in reserves for income taxes, net of deferred tax benefit $ 765,000     $ 765,000    
Interest and penalties included in reserve       102,000    
Liability for uncertain tax positions 6,678,000     6,678,000    
Reserve for income taxes classified as a noncurrent iability 5,651,000     5,651,000   $ 4,830,000
Reserve for income taxes classified an noncurrent deferred tax assets 1,027,000     1,027,000    
Interest and penalties, gross $ 702,000     702,000    
Reserve for income taxes to be recorded in additional paid in capital       700,000    
Minimum decrease in income tax expense due to release in reserves       750,000    
Maximum decrease in income tax expense due to release in reserves       $ 850,000    
Tax years open to examination by Internal Revenue Service       2012 through 2015    
Tax years open to examination by various taxing authorities for other entities       2011 through 2015    
Accounting Standards Update 2016-09 [Member]            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Net cash provided by operating activities         $ 9,358,000  
Net cash provided by (used in) financing activities         $ (9,358,000)  
Accounting Standards Update 2015-17 [Member]            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Deferred income tax assets, current           7,104,000
Deferred income tax liabilities, current           $ 319,000