XML 108 R82.htm IDEA: XBRL DOCUMENT v2.4.1.9
STOCK-BASED COMPENSATION - Stock-based compensation expense (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 26, 2014
Dec. 27, 2013
Dec. 28, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Total stock-based compensation expense $ 11.1us-gaap_AllocatedShareBasedCompensationExpense $ 8.4us-gaap_AllocatedShareBasedCompensationExpense $ 7.9us-gaap_AllocatedShareBasedCompensationExpense
Total related tax benefit recognized $ 3.9us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense $ 2.9us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense $ 2.9us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense