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Long-Lived Assets (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Oct. 04, 2014
Other Current Assets [Member]
Jan. 04, 2014
Other Current Assets [Member]
Apr. 05, 2014
Fremont, California [Member]
Oct. 04, 2014
Fremont, California [Member]
Jul. 05, 2014
Selling, General and Administrative Expenses [Member]
Portland, Oregon [Member]
Oct. 04, 2014
Selling, General and Administrative Expenses [Member]
Portland, Oregon [Member]
Long Lived Assets Held-for-sale [Line Items]            
Assets Held-for-sale, Current $ 0.9 $ 2.6        
Gain (Loss) on Disposition of Business     $ 0.2 $ 0.2 $ 5.1 $ 5.1