Accounting Policies (Tables)

12 Months Ended

Dec. 28, 2012

Accounting Policies [Abstract]

Schedule Of Changes In Product Warranty Liability

At the End of Fiscal Year	2012			2011
(in thousands)
Beginning balance	$	18,444		$	12,868
Acquired warranties	62			4,396
Accruals for warranties issued	21,909			18,438
Changes in estimates	(1,091		)	(41		)
Warranty settlements (in cash or in kind)	(22,258		)	(17,217		)
Ending Balance	$	17,066		$	18,444