Discontinued Operations (Schedule Of Results From Discontinued Operations And Their Current And Non-Current Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Mar. 31, 2011	Dec. 31, 2010	Oct. 01, 2010	Jul. 02, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Discontinued Operations [Abstract]
Net sales									$ 82,632	$ 190,907	$ 100,949
Cost of sales									100,167	191,950	94,959
Restructuring charges											33
Gross profit (loss)									(17,535)	(1,043)	5,957
Selling, general and administrative expenses									5,859	11,459	12,037
Interest and other expense (income), net									32	422	(51)
Loss before income taxes									(23,426)	(12,924)	(6,029)
Provision for (benefit from) income taxes									(1,546)	(2,798)	379
Net loss of discontinued operations	(16,689)	(1,570)	(189)	(3,432)	648	(3,704)	(5,182)	(1,888)	(21,880)	(10,126)	(6,408)
Account receivable, net	892				57,720				892	57,720
Inventories	3,723				33,260				3,723	33,260
Other current assets	471				5,921				471	5,921
Total current assets of discontinued operations	5,086				96,901				5,086	96,901
Property and equipment, net	22,671				57,032				22,671	57,032
Total non-current assets of discontinued operations	22,671				57,032				22,671	57,032
Accounts payable	3,593				78,713				3,593	78,713
Other current liabilities	4,651				8,566				4,651	8,566
Total current liabilities of discontinued operations	$ 8,244				$ 87,279				$ 8,244	$ 87,279