Discontinued Operations (Selected Financial Information Included In Earnings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Dec. 29, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of tax (benefit) expense of $0, $0, $0 and $68	$ 0	$ (100)	$ 0	$ (16,985)
Checkview Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue	0	2	0	16,086
Gross profit	0	(81)	0	201
Selling, general, and administrative expenses	0	0	0	3,970
Research and development	0	0	0	105
Operating loss	0	(81)	0	(3,874)
Loss on disposal	0	(19)	0	(13,043)	(13,600)
Loss from discontinued operations before income taxes	0	(100)	0	(16,917)
Loss from discontinued operations, net of tax (benefit) expense of $0, $0, $0 and $68	$ 0	$ (100)	$ 0	$ (16,985)