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Goodwill and Intangible Assets - Future Amortization Expense (Details) (USD $)
In Thousands, unless otherwise specified
Jul. 27, 2013
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2015 $ 15,946
2016 15,240
2017 13,777
2018 11,616
2019 9,226
Thereafter $ 45,611