Assets Held For Sale Narrative (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 28, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 28, 2014 USD ($)	Dec. 28, 2014 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale		$ 41,008		$ 5,645
Assets held for sale, write down to estimated fair value	$ 2,000		$ 3,000
Assets held for sale, loss on disposal		$ 100
Assets Held for Sale, Number of Properties Sold		2
Assets Held for Sale, Number of Idle Properties		1
LA Times Square Property
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale		$ 41,000