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STOCK-BASED COMPENSATION - Financial Statement Line Items in Which Stock-Based Compensation is Located (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 26, 2015
Dec. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock-based compensation $ 43,642 $ 40,122 $ 31,035
Provision for income taxes (15,548) (14,225) (11,006)
Stock-based compensation, net of income taxes 28,094 25,897 20,029
Cost of revenue (excluding amortization of intangible assets)      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock-based compensation 6,508 6,511 5,382
Selling, general and administrative      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock-based compensation $ 37,134 $ 33,611 $ 25,653