Segment Reporting (Reconciliation of Segment Assets to Total Consolidated Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Mar. 31, 2012	Oct. 01, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 892,981	$ 888,023	$ 1,208,114
Operating segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	949,893		1,268,541
Corporate eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ (56,912)		$ (60,427)